Dragoon 45 -> RE: The Combat Efficiency of American Forces in WWII (1/31/2005 5:26:59 PM)
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ORIGINAL: IronDuke quote:
Some people accept Dupuy's work as gospel and others don't. I believe that is a very safe assumption. While it has been a few years for me since I read Dupuy I still have some questions about his methodalogy that have not been answered. It does seem to me that Dupuy was careful to choose engagements that supported his conclusions. I find no engagements involving Volks Grenadier Formations in his tables as reprinted in "Fighting Power" by Van Crevald. Dragoon, I think critics of Dupuy fail for a couple of reasons. Firstly, the initial set of engagements we've all referred to have been augmented since his initial work with other engagements, that give the same opinions. So, yes, whilst his initial set may have been slanted towards better German formations, the model used has been tested with many others since. It has been tested in Arab/Israeli conflicts as well, and is more tested and used than any other combat model out there. If it was skewed, I feel it would have been discovered by now. Secondly, It has been said that certain factors are wrong within the model. For example, that defensive factors are not correctly weighted. However, since German combat effectiveness comes out better whether they are attacking or defending, any correction of this would not help the Allied cause. One of the major critics, John Sloan Brown, used as part of his argument against Dupuy's work an analysis of the 88th Infantry Division. Brown had studied this American division and came to the conclusion it was very combat effective. When this unit was analysed using Colonel Dupuy's model, it scored very highly, being ranked one of the top American divisions (amongst those tested) and better than many British and German ones as well. In other words, an American formation believed to have performed well from anecdotal and other sorts of evidence was also proved to be a good one using Dupuy's work. Finally, I can't find any other model used that proves American divisions were better. Most critiques don't provide much statistical evidence to back up their point. There are hundreds of engagements analysed by Dupuy's model. If some one has something better, lets see it, but in the absence of that, Dupuy's conclusions are difficult to challenge. As for the lack of Volksgrenadier formations, these were poorly armed and poorly trained. I don't think anyone would dispute that they were generally poor formations. Germany had five years worth of casualties behind them when they started to field these formations, and they lacked much of the heavier weaponry most standard german formations had. I'm sure some data must exist for them, but if to find engagements showing the American Divisions were better we have to compare them to units that were only one or two steps above the Volkstuurm, it suggests Dupuy is close to the truth. quote:
Also I find that some American Divisions consistently performed better than German Formations, such as the 45th ID and 4th Armored, neither would be considered as elite but rather as veteran formations. I don't know whether Dupuy's model has been used to test the 4th Armoured, although my own reading suggests this was one of the better performing American formations. I understood the 45th didn't do so well when analysed, though. quote:
BG S.L.A. Marshall was probably the best known of the historians employed by the U.S. Army in WW II. I can not remember the book in which his findings were published but in his research he found that only 1/3 of the U.S. Infantry ever engaged the enemy with their weapons in WW II. Yes there were some men that didn't engage out of fear, but most were performing other essential tasks at the time, ammo resupply, call for fire, evac of wounded, etc. It depends on what he was looking. If he was looking at American soldiers as a whole, then this is not surprising. The American tail was larger than most, and many US Soldiers would not have engaged in combat as a result. If, however, he was looking at the men in the rifle battalions, then this offers some further explanation for Dupuy's findings. Two thirds of men in a rifle battalion should not go missing on evac etc. I thought SOP when on the attack was to press on and ignore wounded men, as there were stretcher bearers and medics behind the attack who would tend to these. quote:
LTC Grossman wrote a book a few years back "ON KILLING" about this subject and the steps the Army has used over the years to correct the problem. Currently in the U.S. Army I would venture to say over 95% of the infantry engage the enemy today. But the training methods used to gain this increased combat effectiveness has also probably increased the incidence of PTSD and other mental problems in veterans. I offer this little theory in support of why German units may have been more effective in selected engagements than American units. Less firepower equals less combat effectiveness. But the findings you present were general and not tied to certain engagements. This really suggests that Dupuy's model is correct, and that Marshall may have come up with one reason for the lesser combat efficiency of American units. Certainly, Van Creveld suggests several factors were involved. quote:
This thread started out as the American combat soldier was just as effective as a German soldier, a theory put forth by KG Erwin. Col Dupuy's theory is that the German units were more effective than the American units. Most people who believe this theory take that to mean that the German soldier therefore is more effective than the American soldier, but this in not necessarily the case. Unit effectiveness depends on a lot of factors, such as morale, leadership, quality of the troops, logistical support, doctrine, level of training, weather, health, availability of supporting arms, the environment they came from, how they are equipped, etc. Dragoon 45, I think the problem you have is trying to reconcile all this. Dupuy was showing that German units had higher combat effectiveness. All of the things you mention can go into this. Van Creveld certainly lists several factors he thought played a part in higher German effectiveness. I don't believe the average German civilian was somehow intrinsically better than the average American civilian during the war. However, when all the relevant factors were added, the average German civilian became a soldier with a higher combat effectiveness than his American (or British) counterpart. Some of this was down to doctrine, some down to training, some down to tactics, some down to small unit leadership and some down to the intangible morale factor. Weaponry may have played some part, although the average American came armed with a better rifle so it can't be taken too far. Some of the factors you mention abouve like supporting arms and weather are built into Dupuy's model, so these are already accounted for. quote:
Throughout this thread we have conceded that in some areas the Germans were better and that in some areas the Americans were better. The only concession towards American superiority was in the area of logisitics, I think, although we also conceded their naval forces and air forces were bigger and better. These are harder to work out, though. In terms of the air force, the USAAF had better aircraft models for the most part, and far more flight and combat training than their AXIS counterparts. These areas are much harder to quantify on the personal level. quote:
Having served in combat as an infantryman, I know better than to take a one over the world statement and believe it at face value. There always more causes and effects than are factored into a question and its answer. Some have little bearing on the question and others have a large bearing. Some are used and others are not in formulating the answer. True, however Dupuy's model has factored in all the relevant factors. It is not individual results that most effectively prove Dupuy for me, but the consistent trend of results. Some factors may be more important in some engagements than they are in others, but unless every anomaly within the engagements studied somehow favoured the Germans, then it is hard to explain his fairly consistent results. quote:
Unfortunately, over time a theory if supported by enough people becomes regarded as fact. Yes, but Dupuy has a model, it is a well known combat model, the most scrutinised and critiqued ever invented. this theory is supported because the model has survived its critics and no one disagreeing with it has come up with explanations as to why it is wrong. quote:
The flat earth theory comes immediately to mind. I do not suggest that this is the case with Col Dupuy's work, but I would suggest that too many people have taken his work at face value and have not questioned it enough. Did Col Dupuy cover all the factors involved and take them into account in the engagements cited? As I mentioned above, this model had been extensively critiqued and used to successfully predict (I believe) as well as study previous engagements. I would also say that if Colonel Dupuy has something wrong, say a defensive or offensive value, why would it make too much difference if the Germans are consistently better? It could surely make the Germans rate even higher in some cases. quote:
Most importantly did he start the research with the conclusion already formed in his mind? I for one will never believe that the study of history, especially military history, can be form-fitted into a mathmatical equation that will produce the correct answer every time. There is always someone somewhere who will screw the question and its answer up. Yes, but is this a danger just for Colonel Dupuy. With respect, are you as an ex (I presume American) Serviceman (my apologies if I have assumed wrong) searching to discredit Dupuy's work because it is hard for you to accept that the average American soldier was less combat effective? Dupuy was an American soldier. He had no reason to want to discredit his own. I am happy to consider any evidence he is wrong, but so far, no other combat models have been cited, or no other evidence produced. Some of the critiques of the work that has recently questioned Dupuy have been quite damning. I'm thinking here about Brown's work and the more recent book by Mansoor. Regards, IronDuke I am a retired U.S. Army MSG. I do not particularly want to discredit Dupuy's work. In all fairness to him he did some masterful work on his models. What I am saying through all my comments is that I do not believe that he took all factors into account. I will maintain that some of the human factors can not be accurately modeled. Take morale of instance, the loss of one key leader can have an immense effect on morale, totally out of proportion of the effect of the loss of one individual in a let's say a 200 man unit. This effect can take place in the blink of an eye. I do not believe that this effect can be accurately modeled. There are dangers in overestimating your enemy although most of the time not as severe as underestimating him. Col Dupuy's model as I have seen variations of it used in modern military planning tend to produce either underestimation or overestimation of the enemy's capabilities. While overestimation is not nearly as bad as underestimation, it can cause the misuse of forces that produce needless casaulities. Underestimation of the enemy normally will cost the forces involved a significant defeat if not the outright loss of the war. All modern military wargaming used in the Military Decision Making Process is based in a large part on Col Dupuy's work. Numerical values are assigned to the enemy in all areas, then values are assigned to friendly units, and then a ratio is calculated on the totals of each side's forces. If the ratio fits within the predetermined force ratio needed for the type of operation, the planners assume success for the operation. Because of the cumbersome nature in assigning these numerical values, essentially using human judgement calls in assigning the value, a true value is never quite achieved for either friendly or enemy units. Not getting an accurate value thus will either lead to underestimation of the enemy's capabilities or overestimation of his capabilities, with the dangers inherent to either course. For almost 30 years I watched Col Dupuy's model being used in ongoing military operations. True the Military Decision Making Process (MDMP) was only formally committed to doctrine a little bit over 15 years ago. But a variation of it was in use prior to that. Yes his model was modified to work in MDMP and possibly parts of it were ommitted. But from past experience, I have seldom seen it work correctly. There is always some factor left out of the equation. Weither that factor was the unknown and unknowable beforehand influence of a leader at the right place at the right time or was the mis-evaluation of an enemy capability, these types of problems occur quite frequently. Having practical experience using the model with the results I have seen, I do not believe that the model is near as accurate as most people believe. Yes it is a step in the right direction, but it still is not the end all and do all that it has been portrayed to be. All the failings I have seen have been Human failings. Misrepresentation of the effectiveness of intrinsic human qualities. With practical experience as my guide I therefore have misgivings on the results that Col Dupuy orginally published. BTW in two engagements on the table attributed to Dupuy in Van Crevald's Fighting Power the 45th ID had as good as if not better rating than the 88th. According to this table the 45th outperformed the Germans in all but one engagement.
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