>>757418It amounted 4-7% of total Soviet production of all materials, which was a lesser extent of the lend lease compared to the share the British Empire received, and they still couldn't beat the Germans anyways until Soviets kept most of the Axis in Eastern Front and win the war of attrition & production. (but surely US lend lease, oil,food and other materials kept the British Empire afloat)
To claim that the Lend Lease were the 'primary' or a prominent reason the Soviets won WWII is silly, as its chances are extremely unlikely. Soviet military production was already extremely high compared to a nation which was partially agrarian and were outproducing the entire Axis powers in materials.
Though, in some cases, lend lease act was surely very impactful and may be given a credit:
35%~ of Red Army trucks + 90% of new locomotives were received from the US.
50%~ of high-octane avitation fuel
50%~ of the Aluminum (important for aircraft construction), 75% of the Copper, 40%~ of the explosives/chemicals were received via lend lease.
15-20% of the calories of nutrition the Red Army consumed were received via lend lease
>>757472>The URSS had air superiority since the beginning of the war btwPost too long. Click here to view the full text.