According to Phillips Payson O’Brien, it’s old-fashioned to view large land battles as being “decisive” in modern warfare:
Allied victory in WWII is usually viewed through the lens of large land battles, from Stalingrad to Kursk to D-Day. However, battlefield losses of equipment in these “great” land battles were relatively small and easily replaceable. This column demonstrates that the real effort of the major powers was put into the construction of air and sea weapons. The Allies used their air and sea power to destroy the Axis’s in a multi-layered campaign. This was the true battlefield of WWII: a massive air-sea super battlefield that stretched for thousands of miles. Victory in this super-battlefield led to victory in the war.
Every aspect of WWII is discussed in a vast literature. Considering its diversity, explanations of why Germany lost the war are surprisingly predictable. It remains widely argued that the Nazis were beaten mostly by the Soviet Union’s powerful Red Army (Hastings 2005: 508, Kennedy 2013: 183).
From June 1941 to May 1945, German “power” was supposedly engaged and destroyed by the Russians. At some points, more than two-thirds of German infantry were engaged against the Red Army. The famous battles of the Eastern Front, such as Stalingrad and Kursk, supposedly caused the Germans’ crippling losses. The upshot of this lopsided deployment was that most German soldiers died in the East. Fighting against the Americans and British, conversely, is often portrayed as a secondary concern (Roberts 2010: 573).
What’s wrong with a focus on battles?
This battle-centric view, like much history of WWII, is old-fashioned. Historians of strategy have moved away from seeing battles as determinative. Nolan (2017) has argued that attrition losses are more important than battle losses in explaining outcomes.
The battle-centric analysis implies that infantry deployment is the best way to analyse effort. Yet, human-power was rarely the key factor in deciding combat in WWII. Equipment and specialised training mattered more. Possessing and operating the largest stores of modern weapons, not only tanks and artillery but also aircraft and naval vessels, determined the course of battles and the war.
If we reframe the discussion of the war to look not only at what equipment was made but also at how it was destroyed, it emerges that the war was decided far from the land battlefield (O’Brien 2015). The most striking sign of this is how little war production went to the land war and how much went to the combined air-sea war. This was the case for all the powers except the USSR.