Tag Tanks

The Combat Value of Surprise

American soldiers being marched down a road after capture by German troops in the Ardennes, December 1944.
American soldiers being marched down a road after capture by German troops in the Ardennes, December 1944.

[This article was originally posted on 1 December 2016]

In his recent analysis of the role of conventional armored forces in Russian hybrid warfare, U.S. Army Major Amos Fox noted an emphasis on tactical surprise.

Changes to Russian tactics typify the manner in which Russia now employs its ground force. Borrowing from the pages of military theorist Carl von Clausewitz, who stated, “It is still more important to remember that almost the only advantage of the attack rests on its initial surprise,” Russia’s contemporary operations embody the characteristic of surprise. Russian operations in Georgia and Ukraine demonstrate a rapid, decentralized attack seeking to temporally dislocate the enemy, triggering the opposing forces’ defeat.

Tactical surprise enabled by electronic, cyber, information and unconventional warfare capabilities, combined with mobile and powerful combined arms brigade tactical groups, and massive and lethal long-range fires provide Russian Army ground forces with formidable combat power.

Trevor Dupuy considered the combat value of surprise to be important enough to cite it as one of his “timeless verities of combat.”

Surprise substantially enhances combat power. Achieving surprise in combat has always been important. It is perhaps more important today than ever. Quantitative analysis of historical combat shows that surprise has increased the combat power of military forces in those engagements in which it was achieved. Surprise has proven to be the greatest of all combat multipliers. It may be the most important of the Principles of War; it is at least as important as Mass and Maneuver.

In addition to acting as combat power multiplier, Dupuy observed that surprise decreases the casualties of a surprising force and increases those of a surprised one. Surprise also enhances advance rates for forces that achieve it.

In his combat models, Dupuy categorized tactical surprise as complete, substantial, and minor; defining the level achieved was a matter of analyst judgement. The combat effects of surprise in battle would last for three days, declining by one-third each day.

He developed two methods for applying the effects of surprise in calculating combat power, each yielding the same general overall influence. In his original Quantified Judgement Model (QJM) detailed in Numbers, Predictions and War: The Use of History to Evaluate and Predict the Outcome of Armed Conflict (1977), factors for surprise were applied to calculations for vulnerability and mobility, which in turn were applied to the calculation of overall combat power. The net value of surprise on combat power ranged from a factor of about 2.24 for complete surprise to 1.10 for minor surprise.

For a simplified version of his combat power calculation detailed in Attrition: Forecasting Battle Casualties and Equipment Losses in Modern War (1990), Dupuy applied a surprise combat multiplier value directly to the calculation of combat power. These figures also ranged between 2.20 for complete surprise and 1.10 for minor surprise.

Dupuy established these values for surprise based on his judgement of the difference between the calculated outcome of combat engagements in his data and theoretical outcomes based on his models. He never validated them back to his data himself. However, TDI President Chris Lawrence recently did conduct substantial tests on TDI’s expanded combat databases in the context of analyzing the combat value of situational awareness. The results are described in detail in his forthcoming book, War By Numbers: Understanding Conventional Combat.

Was Kursk the Largest Tank Battle in History?

[This post was originally published on 3 April 2017.]

Displayed across the top of my book is the phrase “Largest Tank Battle in History.” Apparently some people dispute that.

What they put forth as the largest tank battle in history is the Battle of Brody in 23-30 June 1941. This battle occurred right at the start of the German invasion of the Soviet Union and consisted of two German corps attacking five Soviet corps in what is now Ukraine. This rather confused affair pitted between 750 to 1,000 German tanks against 3,500 to 5,000 Soviet tanks. Only 3,000 Soviet tanks made it to the battlefield according to Glantz (see video at 16:00). The German won with losses of around a 100 to 200 tanks. Sources vary on this, and I have not taken the time to sort this out (so many battles, so little time). So, total tanks involved are from 3,750 to up to 6,000, with the lower figure appearing to be more correct.

Now, is this really a larger tank battle than the Battle of Kursk? My book covers only the southern part of the German attack that started on 4 July and ended 17 July. This offensive involved five German corps (including three Panzer corps consisting of nine panzer and panzer grenadier divisions) and they faced seven Soviet Armies (including two tank armies and a total of ten tank and mechanized corps).

My tank counts for the southern attack staring 4 July 1943 was 1,707 German tanks (1,709 depending if you count the two Panthers that caught fire on the move up there). The Soviets at 4 July in the all formations that would eventually get involved has 2,775 tanks with 1,664 tanks in the Voronezh Front at the start of the battle. Our count of total committed tanks is slightly higher, 1,749 German and 2,978 Soviet. This includes tanks that were added during the two weeks of battle and mysterious adjustments to strength figures that we cannot otherwise explain. This is 4,482 or 4,727 tanks. So depending on which Battle of Brody figures being used, and whether all the Soviet tanks were indeed ready-for-action and committed to the battle, then the Battle of Brody might be larger than the attack in the southern part of the Kursk salient. On the other hand, it probably is not.

But, this was just one part of the Battle of Kursk. To the north was the German attack from the Orel salient that was about two-thirds the size of the attack in the south. It consisted of the Ninth Army with five corps and six German panzer divisions. This offensive fizzled at the Battle of Ponyiri on 12 July.

The third part to the Battle of Kursk began on 12 July the Western and Bryansk Fronts launched an offensive on the north side of the Orel salient. A Soviet Front is equivalent to an army group and this attack initially consisted of five armies and included four Soviet tank corps. This was a major attack that added additional forces as it developed and went on until 23 August.

The final part of the Battle of Kursk was the counter-offensive in the south by Voronezh, Southwestern and Steppe Fronts that started on 3 August, took Kharkov and continued until 23 August. The Soviet forces involved here were larger than the forces involved in the original defensive effort, with the Voronezh Front now consisting of eight armies, the Steppe Front consisting of three armies, and there being one army contributed by the Southwestern Front to this attack.

The losses in these battles were certainly more significant for the Germans than at the Battle of Brody. For example, in the southern offensive by our count the Germans lost 1,536 tanks destroyed, damaged or broken down. The Soviets lost 2,471 tanks destroyed, damaged or broken down. This compares to 100-200 German tanks lost at Brody and the Soviet tank losses are even more nebulous, but the figure of 2,648 has been thrown out there.

So, total tanks involved in the German offensive in the south were 4,482 or 4,727 and this was just one of four parts of the Battle of Kursk. Losses were higher than for Brody (and much higher for the Germans). Obviously, the Battle of Kursk was a larger tank battle than the Battle of Brody.

What some people are comparing the Battle of Brody to is the Battle of Prokhorovka. This was a one- to five-day event during the German offensive in the south that included the German SS Panzer Corps and in some people’s reckoning, all of the III Panzer Corps and the 11th Panzer Division from the XLVIII Panzer Corps. So, the Battle of Brody may well be a larger tank battle than the Battle of Prokhorovka, but it was not a larger tank battle than the Battle of Kursk. I guess it depends all in how you define the battles.

Some links on Battle of Brody:

https://en.wikipedia.org/wiki/Battle_of_Brody_(1941)

http://warisboring.com/the-biggest-tank-battle-in-history-wasnt-at-kursk/

https://www.youtube.com/watch?v=5qkmO7tm8AU

TDI Friday Read: Links You May Have Missed, 02 March 2018

We are trying something new today, well, new for TDI anyway. This edition of TDI Friday Read will offer a selection of links to items we think may be of interest to our readers. We found them interesting but have not had the opportunity to offer observations or commentary about them. Hopefully you may find them useful or interesting as well.

The story of the U.S. attack on a force of Russian mercenaries and Syrian pro-regime troops near Deir Ezzor, Syria, last month continues to have legs.

And a couple stories related to naval warfare…

Finally, proving that there are, or soon will be, podcasts about everything, there is one about Napoleon Bonaparte and his era: The Age of Napoleon Podcast. We have yet to give it a listen, but if anyone else has, let us know what you think.

Have a great weekend.

Russian Army Experiments With Using Tanks For Indirect Fire

Russian Army T-90S main battle tanks. [Ministry of Defense of the Russian Federation]

Finnish freelance writer and military blogger Petri Mäkelä spotted an interesting announcement from the Ministry of Defense of the Russian Federation: the Combined-Arms Army of the Western Military District is currently testing the use of main battle tanks for indirect fire at the Pogonovo test range in the Voronezh region.

According to Major General Timur Trubiyenko, First Deputy Commander of the Western Military District Combined-Arms Army, in the course of company exercises, 200 tankers will test a combination of platoon direct and indirect fire tactics against simulated armored, lightly armored, and concealed targets up to 12 kilometers away.

Per Mäkelä, the exercise will involve T-90S main battle tanks using their 2A46 125 mm/L48 smoothbore cannons. According to the Ministry of Defense, more than 1,000 Russian Army soldiers, employing over 100 weapons systems and special equipment items, will participate in the exercises between 19 and 22 February 2018.

Tanks have been used on occasion to deliver indirect fire in World War II and Korea, but it is not a commonly used modern tactic. The use of modern fire control systems, guided rounds, and drone spotters might offer the means to make this more useful.

The Historical Combat Effectiveness of Lighter-Weight Armored Forces

A Stryker Infantry Carrier Vehicle-Dragoon fires 30 mm rounds during a live-fire demonstration at Aberdeen Proving Ground, Md., Aug. 16, 2017. Soldiers with 2nd Cavalry Regiment spent six weeks at Aberdeen testing and training on the new Stryker vehicle and a remote Javelin system, which are expected to head to Germany early next year for additional user testing. (Photo Credit: Sean Kimmons)

In 2001, The Dupuy Institute conducted a study for the U.S. Army Center for Army Analysis (CAA) on the historical effectiveness of lighter-weight armored forces. At the time, the Army had developed a requirement for an Interim Armored Vehicle (IAV), lighter and more deployable than existing M1 Abrams Main Battle Tank and the M2 Bradley Infantry Fighting Vehicle, to form the backbone of the future “Objective Force.” This program would result in development of the Stryker Infantry Fighting Vehicle.

CAA initiated the TDI study at the request of Walter W. “Don” Hollis, then the Deputy Undersecretary of the Army for Operations Research (a position that was eliminated in 2006.) TDI completed and submitted “The Historical Combat Effectiveness of Lighter-Weight Armored Forces” to CAA in August 2001. It examined the effectiveness of light and medium-weight armored forces in six scenarios:

  • Conventional conflicts against an armor supported or armor heavy force.
  • Emergency insertions against an armor supported or armor heavy force.
  • Conventional conflict against a primarily infantry force (as one might encounter in sub-Saharan Africa).
  • Emergency insertion against a primarily infantry force.
  • A small to medium insurgency (includes an insurgency that develops during a peacekeeping operation).
  • A peacekeeping operation or similar Operation Other Than War (OOTW) that has some potential for violence.

The historical data the study drew upon came from 146 cases of small-scale contingency operations; U.S. involvement in Vietnam; German counterinsurgency operations in the Balkans, 1941-1945; the Philippines Campaign, 1941-42; the Normandy Campaign, 1944; the Korean War 1950-51; the Persian Gulf War, 1990-91; and U.S. and European experiences with light and medium-weight armor in World War II.

The major conclusions of the study were:

Small Scale Contingency Operations (SSCOs)

  1. Implications for the Interim Armored Vehicle (IAV) Family of Vehicles. It would appear that existing systems (M-2 and M-3 Bradley and M-113) can fulfill most requirements. Current plans to develop an advanced LAV-type vehicle may cover almost all other shortfalls. Mine protection is a design feature that should be emphasized.
  2. Implications for the Interim Brigade Combat Team (IBCT). The need for armor in SSCOs that are not conventional or closely conventional in nature is limited and rarely approaches the requirements of a brigade-size armored force.

Insurgencies

  1. Implications for the Interim Armored Vehicle (IAV) Family of Vehicles. It would appear that existing systems (M-2 and M-3 Bradley and M-113) can fulfill most requirements. The armor threat in insurgencies is very limited until the later stages if the conflict transitions to conventional war. In either case, mine protection is a design feature that may be critical.
  2. Implications for the Interim Brigade Combat Team (IBCT). It is the nature of insurgencies that rapid deployment of armor is not essential. The armor threat in insurgencies is very limited until the later stages if the conflict transitions to a conventional war and rarely approaches the requirements of a brigade-size armored force.

Conventional Warfare

Conventional Conflict Against An Armor Supported Or Armor Heavy Force

  1. Implications for the Interim Armored Vehicle (IAV) Family of Vehicles. It may be expected that opposing heavy armor in a conventional armor versus armor engagement could significantly overmatch the IAV. In this case the primary requirement would be for a weapon system that would allow the IAV to defeat the enemy armor before it could engage the IAV.
  2. Implications for the Interim Brigade Combat Team (IBCT). The IBCT could substitute as an armored cavalry force in such a scenario.

Conventional Conflict Against A Primarily Infantry Force

  1. Implications for the Interim Armored Vehicle (IAV) Family of Vehicles. This appears to be little different from those conclusions found for the use of armor in SSCOs and Insurgencies.
  2. Implications for the Interim Brigade Combat Team (IBCT). The lack of a major armor threat will make the presence of armor useful.

Emergency Insertion Against An Armor Supported Or Armor Heavy Force

  1. Implications for the Interim Armored Vehicle (IAV) Family of Vehicles. It appears that the IAV may be of great use in an emergency insertion. However, the caveat regarding the threat of being overmatched by conventional heavy armor mentioned above should not be ignored. In this case the primary requirement would be for a weapon system that would allow the IAV to defeat the enemy armor before it could engage the IAV.
  2. Implications for the Interim Brigade Combat Team (IBCT). Although the theoretical utility of the IBCT in this scenario may be great it should be noted that The Dupuy Institute was only able to find one comparable case of such a deployment which resulted in actual conflict in US military history in the last 60 years (Korea, 1950). In this case the effect of pushing forward light tanks into the face of heavier enemy tanks was marginal.

Emergency Insertion Against A Primarily Infantry Force

  1. Implications for the Interim Armored Vehicle (IAV) Family of Vehicles. The lack of a major armor threat in this scenario will make the presence of any armor useful. However, The Dupuy Institute was unable to identify the existence of any such cases in the historical record.
  2. Implications for the Interim Brigade Combat Team (IBCT). The lack of a major armor threat will make the presence of any armor useful. However, The Dupuy Institute was unable to identify the existence of any such cases in the historical record.

Other Conclusions

Wheeled Vehicles

  1. There is little historical evidence one way or the other establishing whether wheels or tracks are the preferable feature of AFVs.

Vehicle Design

  1. In SSCOs access to a large-caliber main gun was useful for demolishing obstacles and buildings. This capability is not unique and could be replaced by AT missiles armed CFVs, IFVs and APCs.
  2. Any new lighter tank-like vehicle should make its gun system the highest priority, armor secondary and mobility and maneuverability tertiary.
  3. Mine protection should be emphasized. Mines were a major threat to all types of armor in many scenarios. In many SSCOs it was the major cause of armored vehicle losses.
  4. The robust carrying capacity offered by an APC over a tank is an advantage during many SSCOs.

Terrain Issues

  1. The use of armor in urban fighting, even in SSCOs, is still limited. The threat to armor from other armor in urban terrain during SSCOs is almost nonexistent. Most urban warfare armor needs, where armor basically serves as a support weapon, can be met with light armor (CFVs, IFVs, and APCs).
  2. Vehicle weight is sometimes a limiting factor in less developed areas. In all cases where this was a problem, there was not a corresponding armor threat. As such, in almost all cases, the missions and tasks of a tank can be fulfilled with other light armor (CFVs, IFVs, or APCs).
  3. The primary terrain problem is rivers and flooded areas. It would appear that in difficult terrain, especially heavily forested terrain (areas with lots of rainfall, like jungles), a robust river crossing capability is required.

Operational Factors

  1. Emergency insertions and delaying actions sometimes appear to be a good way to lose lots of armor for limited gain. This tends to come about due to terrain problems, enemy infiltration and bypassing, and the general confusion prevalent in such operations. The Army should be careful not to piecemeal assets when inserting valuable armor resources into a ‘hot’ situation. In many cases holding back and massing the armor for defense or counter-attack may be the better option.
  2. Transportability limitations have not been a major factor in the past for determining whether lighter or heavier armor were sent into a SSCO or a combat environment.

Casualty Sensitivity

  1. In a SSCO or insurgency, in most cases the weight and armor of the AFVs is not critical. As such, one would not expect any significant changes in losses regardless of the type of AFV used (MBT, medium-weight armor, or light armor). However, the perception that US forces are not equipped with the best-protected vehicle may cause some domestic political problems. The US government is very casualty sensitive during SSCOs. Furthermore, the current US main battle tank particularly impressive, and may help provide some additional intimidation in SSCOs.
  2. In any emergency insertion scenario or conventional war scenario, the use of lighter armor could result in higher US casualties and lesser combat effectiveness. This will certainly cause some domestic political problems and may impact army morale. However by the same token, light infantry forces, unsupported by easily deployable armor could present a worse situation.

U.S. Army Solicits Proposals For Mobile Protected Firepower (MPF) Light Tank

The U.S. Army’s late and apparently lamented M551 Sheridan light tank. [U.S. Department of the Army/Wikipedia]

The U.S. Army recently announced that it will begin soliciting Requests for Proposal (RFP) in November to produce a new lightweight armored vehicle for its Mobile Protected Firepower (MPF) program. MPF is intended to field a company of vehicles for each Army Infantry Brigade Combat Team to provide them with “a long-range direct-fire capability for forcible entry and breaching operations.”

The Army also plans to field the new vehicle quickly. It is dispensing with the usual two-to-three year technology development phase, and will ask for delivery of the first sample vehicles by April 2018, one month after the RFP phase is scheduled to end. This will invariably favor proposals using existing off-the-shelf vehicle designs and “mature technology.”

The Army apparently will also accept RFPs with turret-mounted 105mm main guns, at least initially. According to previous MFP parameters, acceptable designs will eventually need to be able to accommodate 120mm guns.

I have observed in the past that the MPF is the result of the Army’s concerns that its light infantry may be deprived of direct fire support on anti-access/area denial (A2/AD) battlefields. Track-mounted, large caliber direct fire guns dedicated to infantry support are something of a doctrinal throwback to the assault guns of World War II, however.

There was a noted tendency during World War II to use anything on the battlefield that resembled a tank as a main battle tank, with unhappy results for the not-main battle tanks. As a consequence, assault guns, tank destroyers, and light tanks became evolutionary dead-ends in the development of post-World War II armored doctrine (the late M551 Sheridan, retired without replacement in 1996, notwithstanding). [For more on the historical background, see The Dupuy Institute, “The Historical Effectiveness of Lighter-Weight Armored Forces,” August 2001.]

The Army has been reluctant to refer to MPF as a light tank, but as David Dopp, the MPF Program Manager admitted, “I don’t want to say it’s a light tank, but it’s kind of like a light tank.” He went on to say that “It’s not going toe to toe with a tank…It’s for the infantry. It goes where the infantry goes — it breaks through bunkers, it works through targets that the infantry can’t get through.”

Major General David Bassett, program executive officer for the Army’s Ground Combat Systems concurred. It will be a tracked vehicle with substantial armor protection, Bassett said, “but certainly not what you’d see on a main battle tank.”

It will be interesting to see what the RFPs have to offer.

Previous TDI commentaries on the MPF Program:

https://dupuyinstitute.dreamhosters.com/2016/10/19/back-to-the-future-the-mobile-protected-firepower-mpf-program/

https://dupuyinstitute.dreamhosters.com/2017/03/21/u-s-army-moving-forward-with-mobile-protected-firepower-mpf-program/

TDI Friday Read: Tank Warfare In World War II

American troops advance under the cover of M4 Sherman tank ‘Lucky Legs II’ during mop up operations on Bougainville, Solomon Islands, March 1944. [National Archives/ww2dbase]

In honor of Tony Buzbee, who has parked a fully-functional vintage World War II era M-4 Sherman tank in front of his house in Houston, Texas (much to the annoyance of his home owner’s association), here is a selection of posts addressing various aspects of tank warfare in World War II for you weekend leisure reading.

https://dupuyinstitute.dreamhosters.com/2016/08/23/counting-holes-in-tanks-in-tunisia/

U.S. Tank Losses and Crew Casualties in World War II

Tank Loss Rates in Combat: Then and Now

https://dupuyinstitute.dreamhosters.com/2017/04/03/was-kursk-the-largest-tank-battle-in-history/

A2/D2 Study

Against the Panzers

And, of course, Chris Lawrence has written the largest existing book on the largest tank battle in history, Kursk.

Tanks With Frickin’ Laser Beams On Their Heads

Portent Of The Future: This Mobile High-Energy Laser-equipped Stryker was evaluated during the 2017 Maneuver Fires Integrated Experiment at Fort Sill, Oklahoma. The MEHEL can shoot a drone out of the sky using a 5kW laser. (Photo Credit: C. Todd Lopez)

As the U.S. Army ponders its Multi-Domain Battle concept for future warfare, it is also considering what types of weapons it will need to conduct it. Among these is a replacement for the venerable M1 Abrams Main Battle Tank (MBT), which is now 40 years old. Recent trends in combat are leading some to postulate a next-generation MBT that is lighter and more maneuverable, but equipped with a variety of new defensive capabilities to make them more survivable against modern anti-tank weapons. These include electronic jamming and anti-missile missiles, collectively referred to as Active Protection Systems, as well as unmanned turrets. Manned vehicles will be augmented with unmanned ground vehicles.The Army is also exploring new advanced composite armor and nanotechnology.

Also under consideration are replacements for the traditional MBT long gun, including high-power lasers and railguns. Some of these could be powered by hydrogen power cells and biofuels.

As the U.S. looks toward lighter armored vehicles, some countries appear to going in the other direction. Both Russia and Israel are developing beefed-up versions of existing vehicles designed specifically for fighting in urban environments.

The strategic demands on U.S. ground combat forces don’t allow for the luxury of fielding larger combat vehicles that complicate the challenge of rapid deployment to face global threats. Even as the historical trend toward increasing lethality and greater dispersion on the battlefield continues, the U.S. may have little choice other than to rely on technological innovation to balance the evolving capabilities of potential adversaries.

War Stories On The Future Of The Tank

DARPA’s Ground X-Vehicle Technology (GXV-T). [YouTube]

I have been late to the rodeo in bringing attention to the wonderful War Stories podcast’s season ending episode. It culminated the first season’s arc covering the history of armored warfare by looking forward at possible directions for the development of future tanks. Adin Dobkin and Angry Staff Officer bring their usual mix of military insight and humor to bear on a fascinating topic.

They conclude by speculating that future tanks will glide over the ground rather than drive or roll over it. This leads them to turn their dials up to 11 in an bonus interseason episode devoted to the decline of armored vehicles in the Star Wars movies. You will find this mix of sci-fi nerdiness and the theory and practice of armored warfare nowhere else.

Go listen. You won’t regret it.

Back to the Future

The opening sentence of an article by Dan Goure caught my attention: “Every decade of so since the 1960s, the U.S. Army creates a requirement for what can nominally be described as a light tank.” The article is here: http://nationalinterest.org/blog/the-buzz/its-back-the-future-mobile-protected-firepower-20539?page=show

It reminds me of a meeting we had in late 2000 with Walt Hollis, Deputy Under Secretary of the Army (Operations Research). He started the meeting by telling us that something like “Every now and then, someone seems to want to bring back the light tank.” He then went on to explain that these requirements are being pushed from the top (meaning by the Chief of Staff of the Army) and they should probably have a study done on the subject. He then asked us to do such an effort.

We did and it is here: http://www.dupuyinstitute.org/pdf/mwa-2lightarmor.pdf

We decided to examine the effectiveness of lighter-weight armor based upon real-world experience in six possible scenarios:

  1. Conventional conflicts against an armor supported or armor heavy force.
  2. Emergency insertions against an armor support or armor heavy force.
  3. Conventional conflict against a primarily infantry force (as one might encounter in sub-Saharan Africa).
  4. Emergency insertion against a primarily infantry force.
  5. A small to medium insurgency (includes an insurgency that develops during a peacekeeping operation).
  6. A peacekeeping operation or similar Operation Other Than War (OOTW) that has some potential for violence.

Anyhow, I am not going to summarize the report here as that would take too long. I did draft up a chapter on it for inclusion in War by Numbers, but decided to leave it out as it did not fit into the “theory testing” theme of the book. Instead, I am holding it for one of my next books, Future American Wars.

The interesting aspect of the report is that we were at a meeting in 2001 at an Army OR outfit that was reviewing our report, and they told us that the main point of action they drew from the report was that we needed to make sure our armor vehicles were better protected against mines. As our report looked at the type of tank losses being suffered in the insurgencies and OOTWs, there were a lot of vehicles being lost to mines. Apparently they had not fully realized this (and Iraq did not occur until 2003).