The Dupuy Institute

The Dupuy Institute Founded by Trevor N. Dupuy, The Dupuy Institute is dedicated to scholarly research and objective analysis of historical data related to armed conflict.

The Dupuy Institute is an organization dedicated to scholarly research and objective analysis of historical data related to armed conflict and the resolution of armed conflict. The Dupuy Institute provides independent, historically-based analyses of lessons learned from modern military campaigns. In tribute to what Colonel Trevor N. Dupuy pioneered, and in an effort to pursue his goals, The Dupuy Institute continues to amass historical data and strives to refine their understanding of the complexities of modern warfare. The Dupuy Institute is committed to the original goals of the founders of operational research - the accumulation of recorded, detailed data from actual battlefield experience - and the utilization of actual battlefield experience to understand all dimensions of combat, including technological and human factors. The Dupuy Institute conducts its military history research, analysis and reporting under contract with government and private agencies, through book contracts with publishers, under the terms of grants from foundations and corporations, and through projects developed under its own initiative.

Operating as usual

These has been a little rumbling lately in the news about Malaysia and Vietnam asserting their territorial rights in the...
01/14/2020
The Size of Fleets in the South China Sea, Part 1

These has been a little rumbling lately in the news about Malaysia and Vietnam asserting their territorial rights in the South China Sea. Of course, part of the area they asserting is part of their 200 mile economic exclusion zone happens to be territory that Red China also claims. These are not the only countries that have such conflicts. Bordering the South China Sea is China, Taiwan, Philippines, Indonesia, Brunei, Singapore, Malaysia, Thailand, Cambodia and Vietnam. [ 388 more words ]
http://www.dupuyinstitute.org/blog/2020/01/14/the-size-of-fleets-in-the-south-china-sea/

These has been a little rumbling lately in the news about Malaysia and Vietnam asserting their territorial rights in the South China Sea. Of course, part of the area they asserting is part of their…

I do have a completed book of around 400 pages called Aces at Kursk: The Belgorod Offensive Air War.  It is a book about...
01/13/2020
Looking for a publisher for Aces at Kursk

I do have a completed book of around 400 pages called Aces at Kursk: The Belgorod Offensive Air War. It is a book about the actual air battles, as opposed to yet another picture book. The air battles at Kursk were larger than the Battle of Britain, yet there is not a single comprehensive book addressing it. I have contacted a number of publishers and am still waiting for a response from some of them. [ 59 more words ]
http://www.dupuyinstitute.org/blog/2020/01/13/looking-for-a-publisher-for-aces-at-kursk/

I do have a completed book of around 400 pages called Aces at Kursk: The Belgorod Offensive Air War. It is a book about the actual air battles, as opposed to yet another picture book. The air batt…

Iran has admitted that an Iranian air defense system downed the Ukrainian airliner yesterday. Sadly, this is becoming an...
01/11/2020
Downing Airliners

Iran has admitted that an Iranian air defense system downed the Ukrainian airliner yesterday. Sadly, this is becoming an all too common occurrence. The major incidents like this include: Ukrainian Airlines, 8 January 2020 - It appears it was shot down by an Iranian missile (picture shown above). 176 people killed. Malaysian Flight MH-17, 17 July 2014 - Shot down by a Russian air defense missile. [ 654 more words ]
http://www.dupuyinstitute.org/blog/2020/01/11/downing-airliners/

Iran has admitted that an Iranian air defense system downed the Ukrainian airliner yesterday. Sadly, this is becoming an all too common occurrence. The major incidents like this include: Ukrainian …

Our air defense artillery assets consists of Patriot, THAAD (Terminal High Altitude Area Defense) and the SHORAD (Short ...
01/10/2020
Current Deployment of Patriot Missile Battalions

Our air defense artillery assets consists of Patriot, THAAD (Terminal High Altitude Area Defense) and the SHORAD (Short Range Air Defense) battalions and batteries, among other elements. A Patriot Missile Battalion consists of four or five Patriot Missile Batteries. A Patriot Missile Battery consists of four or six launchers, each with four missiles. The United States has 16 Patriot battalions. There is one battalion in Germany and three battalions in South Korea and I gather at least one battery in the Gulf (not sure which). [ 343 more words ]
http://www.dupuyinstitute.org/blog/2020/01/10/current-deployment-of-patriot-missile-battalions/

Our air defense artillery assets consists of Patriot, THAAD (Terminal High Altitude Area Defense) and the SHORAD (Short Range Air Defense) battalions and batteries, among other elements. A Patriot …

We just got "shelled" by a dozen ballistic missiles fired from Iran to Iraq. These are the type of things that could be ...
01/09/2020
So Where are the Patriots?

We just got "shelled" by a dozen ballistic missiles fired from Iran to Iraq. These are the type of things that could be stopped by Patriot surface-to-air (SAM) missiles. Apparently we were given a heads up that the missiles were coming. Not sure if we have any Patriot missile batteries deployed in Iraq. During the build up in May and June, we did deploy at least one Patriot battery to the Gulf. [ 81 more words ]
http://www.dupuyinstitute.org/blog/2020/01/09/so-where-are-the-patriots/

We just got “shelled” by a dozen ballistic missiles fired from Iran to Iraq. These are the type of things that could be stopped by Patriot surface-to-air (SAM) missiles. Apparently we w…

01/08/2020
www.dupuyinstitute.org

Seeing how Iran and Iraq are back in the news (as I suspect so will be the Persian Gulf), let me just remind everyone the size of these "theaters." .........................Iraq..............Iran..............Persian Gulf.........Texas.........Lake Superior Area (sq. km)...437,072.........1,648,195....251,000.................696,241.......82,000 Population.......38,433,600...82,531,700...N/A.......................28,995,881.......N/A GDP ..............$250 Billion...$458 Billion...N/A......................$1,819 Billion....N/A Texas is the second largest state in the U.S. (behind Alaska) and the second most populous state in the U.S. [ 83 more words ]
http://www.dupuyinstitute.org/blog/2020/01/08/size-of-theater/

One person commented on this blog about the danger posed by Russian submarines. Probably a good time to look at what the...
01/07/2020
U.S. Navy Compared to Russian Navy

One person commented on this blog about the danger posed by Russian submarines. Probably a good time to look at what the threat is. I did start my career in the U.S. defense industry working with submarine sonars and spectrum analyzers. This was back in the bad old days, when there were hundreds of subs out there. In our new found more peaceful world, there are a lot less. [ 430 more words ]
http://www.dupuyinstitute.org/blog/2020/01/07/u-s-navy-compared-to-russian-navy/

One person commented on this blog about the danger posed by Russian submarines. Probably a good time to look at what the threat is. I did start my career in the U.S. defense industry working with s…

Niklas Zetterling's revised and update version of his excellent book Normandy 1944 is being re-issued. According to Amaz...
01/06/2020
Normandy 1944: German Military Organization, Combat Power and Organizational Effectiveness

Niklas Zetterling's revised and update version of his excellent book Normandy 1944 is being re-issued. According to Amazon.com it will be available January 10, 2020. The link is here: Normandy 1944 It is set up to "look inside" so you can get some idea what is in there. It is of course, not another war story but a two part discussion on "Campaign Analysis" and "German Combat Formations." [ 156 more words ]
http://www.dupuyinstitute.org/blog/2020/01/06/normandy-1944-german-military-organization-combat-power-and-organizational-effectiveness/

Niklas Zetterling’s revised and update version of his excellent book Normandy 1944 is being re-issued. According to Amazon.com it will be available January 10, 2020. The link is here: Normand…

Time and the TNDM by Christopher A. Lawrence Combat models are designed to operate within their design parameters, but s...
01/02/2020
Time and the TNDM

Time and the TNDM by Christopher A. Lawrence Combat models are designed to operate within their design parameters, but sometimes we forget what those are. A model can only be expected to perform well in those areas for which it was designed in and those areas where it has been tested (meaning validated). Since most of the combat models used in the US Department of Defense have not been validated, this leaves open the question as to what their parameters might be. [ 428 more words ]
http://www.dupuyinstitute.org/blog/2020/01/02/time-and-the-tndm/

[The article below is reprinted from December 1996 edition of The International TNDM Newsletter. It was referenced in the recent series of posts addressing the battalion-level validation of Trevor …

The U.S. population grew 1.5 million in 2018 up to 328 million. This is around 0.5% growth rate. Over a third of that gr...
12/31/2019
U.S. Population Growth for 2019

The U.S. population grew 1.5 million in 2018 up to 328 million. This is around 0.5% growth rate. Over a third of that growth was immigrants. Immigration in 2019 was 595,000 people, down from around 1 million in 2016. Guessing this refers to legal immigrants. This is from an AP article: With births down, U.S. had slowest growth rate in the century… [ 112 more words ]
http://www.dupuyinstitute.org/blog/2019/12/31/u-s-population-growth-for-2019/

The U.S. population grew 1.5 million in 2018 up to 328 million. This is around 0.5% growth rate. Over a third of that growth was immigrants. Immigration in 2019 was 595,000 people, down from around…

I just heard that Charles Hawkins, or Chuck Hawkins passed away September 19, 2019 in Ninilchik Alaska. Chuck Hawkins jo...
12/22/2019
Charles Hawkins passed away

I just heard that Charles Hawkins, or Chuck Hawkins passed away September 19, 2019 in Ninilchik Alaska. Chuck Hawkins joined Trevor Dupuy's Data Memory Systems Inc. (DMSI) as a vice-president in 1988. He was a former army captain who fought in Vietnam with a strong interest in analysis of combat. He came into the organization while it was at its peak but was about to crash due to the deep budget cuts that occurred at the end of the Cold War. [ 100 more words ]
http://www.dupuyinstitute.org/blog/2019/12/22/charles-hawkins-passed-away/

I just heard that Charles Hawkins, or Chuck Hawkins passed away September 19, 2019 in Ninilchik Alaska. Chuck Hawkins joined Trevor Dupuy’s Data Memory Systems Inc. (DMSI) as a vice-president…

The following five posts make up our discussion of the impact of Human Factors on Force Ratios. As a result of a comment...
12/17/2019
Summation of Human Factors and Force Ratio posts

The following five posts make up our discussion of the impact of Human Factors on Force Ratios. As a result of a comment by Tom from Cornwall, we ended up adding three posts to this discussion that looked at terrain and amphibious operations and river crossings in Italy: The previous posts on this discussion on forcer ratios are presented here. [ 87 more words ]
http://www.dupuyinstitute.org/blog/2019/12/17/summation-of-human-factors-and-force-ratio-posts/

The following five posts make up our discussion of the impact of Human Factors on Force Ratios. As a result of a comment by Tom from Cornwall, we ended up adding three posts to this discussion that…

Just noted this article: This is Russia's only carrier. It is in dock in Siberia undergoing refitting. It is supposed to...
12/13/2019
Kuznetsov on Fire

Just noted this article: This is Russia's only carrier. It is in dock in Siberia undergoing refitting. It is supposed to be done in 2021...but this is doubtful. The Russian fleet is still extremely limited in capability. We have written about this before. Our count of carriers throughout the world in 2016 is given in this post: [ 26 more words ]
http://www.dupuyinstitute.org/blog/2019/12/13/kuznetsov-on-fire/

Just noted this article: This is Russia’s only carrier. It is in dock in Siberia undergoing refitting. It is supposed to be done in 2021…but this is doubtful. The Russian fleet is still…

Having looked at casualty exchanges from my book War by Numbers and in the previous post, it is clear that there are not...
12/12/2019
The Performance of Armies in Italy, 1943-44

Having looked at casualty exchanges from my book War by Numbers and in the previous post, it is clear that there are notable differences between the German and Soviet armies, and between the Israeli and Arab armies. These differences show up in the force ratio tables, in the percent of wins, and in the casualty exchange ratios. As shown above, there is also a difference between the German and the U.S. [ 1,205 more word ]
http://www.dupuyinstitute.org/blog/2019/12/12/the-performance-of-armies-in-italy-1943-44/

  Having looked at casualty exchanges from my book War by Numbers and in the previous post, it is clear that there are notable differences between the German and Soviet armies, and between the…

Now, there were a few amphibious operations and major river crossing operations during the Italian Campaign. These are s...
12/10/2019
Amphibious and River Crossing Engagements in the Italian Campaign 1943-44

Now, there were a few amphibious operations and major river crossing operations during the Italian Campaign. These are significant enough that we should examine them separately. Among the 141 Italian Campaign engagements there are three amphibious operations and 16 river crossing operations. These are outlined in our previous post: This is a small number of cases, but does seem to show that the defender has an advantage when defending against amphibious assaults and river crossings. [ 600 more words ]
http://www.dupuyinstitute.org/blog/2019/12/10/amphibious-and-river-crossing-engagements-in-the-italian-campaign-1943-44/

Now, there were a few amphibious operations and major river crossing operations during the Italian Campaign. These are significant enough that we should examine them separately. Among the 141 Itali…

In a previous post, there is an extended discussion of how much the terrain was influencing the results. One reader aske...
12/07/2019
Amphibious and River Crossing attacks in Italy 1943-44

In a previous post, there is an extended discussion of how much the terrain was influencing the results. One reader asked about amphibious operations and river crossings. Among the 141 Italian Campaign engagements there are three amphibious operations and 16 river crossing operations. Amphibious Operations – Italian Campaign 1943-44: ..................................................Average..Average ....................................Percent...Percent...Attacker..Defender .......................Cases....Wins.......Advance..Losses...Losses [ 172 more words ]
http://www.dupuyinstitute.org/blog/2019/12/07/amphibious-and-river-crossing-attacks-in-italy-1943-44/

In a previous post, there is an extended discussion of how much the terrain was influencing the results. One reader asked about amphibious operations and river crossings. Among the 141 Italian Camp…

In our previous post, there is an extended discussion on how much the terrain was influencing the results. I have done s...
12/06/2019
German attacks in Italy by Terrain (1943-44)

In our previous post, there is an extended discussion on how much the terrain was influencing the results. I have done some analysis of the terrain involved. Below are some figures for the German attacks based upon terrain: Germans Attacking U.S. – Italian Campaign 1943-44: ..............................................................Average...Average .............................................Percent...Percent....Attacker...Defender...Force...Exchange ...............................Cases...Wins........Advance...Losses....Losses......Ratio....Ratio Rugged Mixed..........1...........0...............0...............250..........1617..........0.72......0.15-to-1 Rolling Mixed...........1............0...............0...............769............525..........0.84......1.46-to-1 Flat Mixed................3............0..............33..............647.............672.........1.60......0.96-to-1 Germans Attacking UK – Italian Campaign 1943-44: [ 349 more words ]
http://www.dupuyinstitute.org/blog/2019/12/06/german-attacks-in-italy-by-terrain-1943-44/

In our previous post, there is an extended discussion on how much the terrain was influencing the results. I have done some analysis of the terrain involved. Below are some figures for the German a…

Then there is our analysis from the 137 engagements from the Italian Campaign. This was new analysis using the entire cu...
12/05/2019
Measuring Human Factors based on Casualty Effectiveness in Italy 1943-1944

Then there is our analysis from the 137 engagements from the Italian Campaign. This was new analysis using the entire current version of the database. ........................................................................Average.........Average Italian Campaign Data..................................Force Ratio....Loss Ratio [ 465 more words ]
http://www.dupuyinstitute.org/blog/2019/12/05/measuring-human-factors-based-on-casualty-effectiveness-in-italy-1943-1944/

Then there is our analysis from the 137 engagements from the Italian Campaign. This was new analysis using the entire current version of the database. ………………R…

This issue was addressed in multiple chapters of my book War by Numbers, so we will just present a few tables related to...
12/03/2019
Measuring Human Factors based upon Casualty Effectiveness

This issue was addressed in multiple chapters of my book War by Numbers, so we will just present a few tables related to casualty effectiveness drawn from that book. They are simple comparisons of the average force ratios for attacks compared to the average loss ratios for these attacks. First, table compares the Soviet Union versus the German Army. [ 953 more words ]
http://www.dupuyinstitute.org/blog/2019/12/03/measuring-human-factors-based-upon-casualty-effectiveness/

This issue was addressed in multiple chapters of my book War by Numbers, so we will just present a few tables related to casualty effectiveness drawn from that book. They are simple comparisons of …

We see a similar disparity in results between the Israeli Army and the various Arab armies they engaged. The Arab armies...
11/28/2019
Force Ratios in the Arab-Israeli Wars (1956-1973)

We see a similar disparity in results between the Israeli Army and the various Arab armies they engaged. The Arab armies include Egyptian, Syrian, Jordanian and Iraqi. To simplify we have just lumped the engagements involving these four armies together, although we are certain that there differences between these various armies. The data includes two engagements from 1956, 16 from 1967, one from 1968 and 32 from 1973 for a total of 51 division-level engagements. [ 576 more words ]
http://www.dupuyinstitute.org/blog/2019/11/28/force-ratios-in-the-arab-israeli-wars-1956-1973/

We see a similar disparity in results between the Israeli Army and the various Arab armies they engaged. The Arab armies include Egyptian, Syrian, Jordanian and Iraqi. To simplify we have just lump…

Now, some of the data provided in the previous posts were muddied by the fact that there were serious differences in the...
11/26/2019
Force Ratios at Kharkov and Kursk, 1943

Now, some of the data provided in the previous posts were muddied by the fact that there were serious differences in the performances of the opposing armies. This is true for the German Army versus the Soviet Army in 1943, the Israeli Army versus the Arab armies in 1956-1973, and for the U.S. Army, USMC and allied armies versus the Iraqi Army in 1991. [ 784 more words ]
http://www.dupuyinstitute.org/blog/2019/11/26/force-ratios-at-kharkov-and-kursk-1943/

Now, some of the data provided in the previous posts were muddied by the fact that there were serious differences in the performances of the opposing armies. This is true for the German Army versus…

Address

8215 Wolftrap Rd
Vienna, VA
22182

Alerts

Be the first to know and let us send you an email when The Dupuy Institute posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to The Dupuy Institute:

Nearby government services


Other Public & Government Services in Vienna

Show All

Comments

Is anybody here familiar with the populist works of Steven Zaloga?