The idea that WW2 was won by land armies of Allies and that Soviet Union played main role is too easily swallowed by common wisdom. However those who have studied statistics of military production during 1939-45 have found interesting facts challenging the land warfare Eastern Front centric perspective. Here are some of munition production facts might surprise those never heard about them: 1. USA and UK invested some 20% for land warfare. 2. Germany invested 58% for air war including anti-aircraft artillery, 12% for sea warfare and just about 30% for land warfare. 3. Japan used 85% of their war production for air and sea warfare. 4. Much more German and Japanese aircraft was lost in production or on deployment process to battle zone than in combat. 5. Germany likely invested less than 20% of their munition production for Eastern Front land warfare. 6. Germany produced some 100 000 aircraft in 1939-45 but only 9 000 - 10 000 were lost in Eastern Front warfare. 7. At least twice as many German aircraft was lost in production by allied strategic bombing than in Eastern Front 8. Germany invested 3 billion for V-2 weapons, a sum value of some 30 000 Pzkw IV tanks of StuG III assault guns. 9. Just in 1943 Germany invested 4-4.5 billion RM for concrete shelter construction, 80% of it targeting western allied strategic air war (securing production) 10. Even in late 1944 and early 1945 new generation German XXI U-boats were in high priority for German war production. 11. German Army was subordinated to defend Courtland until the very end for that Kriegsmarine had place to train and test their new XXI U-boats 12. Eastern Front was never in high priority compared to protecting war production. From late 1943 to 1945 average 12-13% of German AA-guns were in east. In 1944 just over 15% of Luftwaffe fighters were in whole Eastern Front. German military HQ more likely sacrificed divisions and armies in east or south to secure production especially synthetic fuel, aircraft, U-boats, V-weapons, transport and whole infrastructure. 13. While Germans invested huge resources and studies for new weapons like V-2, jet aircraft almost all of them were targeting western allied, not Eastern Front. Not a single V-weapon was shot to east. These are some of the main points suggesting that Eastern Front, unlike the common wisdom is suggesting might not have been the most important front for Germany at all. If land warfare got just average about 25% of munitions of all military powers it seems to not have been decisive warfare at all. What those powers really were focusing was war in air and sea. Germany had actually only one real strategic weapon so shake allied and it was their U-boat fleet in Atlantic. And indeed there was short period especially in early 1942 when both Churchill and Roosevelt were very worried about the future of war when e.g over 20% of bauxite was sunk by less than 10 German U-boat crews in Caribbean, Gulf of Mexico or east coast of USA. American aircraft production was not able to produce planned 60 000 aircraft in 1942 - they produced 20% less, 48 000. Because U-boats of Dönitz. After the war most of German military commanders did agree that Germany lost the war because Luftwaffe lost the war against western allied. Soviet Union played minor role on that process. The truth about land warfare of WW2 (in east, south and west) is that divisions without air cover at all have not much battle value left. They will lost their mobility and become pray for enemy. Western allied leaders made important decision during 1942 to cut budgets of armies and instead give more and more resources to air and sea power. USA (especially Marshall) planned in 1941 to build army of more than 200 divisions. However those plans were abandoned (by Roosevelt and others) and USA had never more than 91 divisions. Britain made same decision: less army divisions, much more air power. Even as early as late 1940 Winston Churchill had mentioned that "the era of huge land armies is over". Germany in many ways tried to act in same way. They invested mostly for air and sea warfare. Instead of reducing army they just decided not to give divisions much. German army in Eastern Front was mostly not different than that of 1914-18, horse pulling force. Land warfare was relatively cheap. Equipment losses were easily replaced. Destroyed war production however was nightmare for Nazi regime. Some of the worst was that offense by Spaatz to German synthetic fuel production in spring of 1944.