One of the biggest myth is that only because of Lend-Lease Russia wasn’t defeated by Gemany.
Please trust the facts, not the propaganga.
In the publications of Russian authors, it was emphasized that the military-industrial, raw-material and food assistance provided by the USA and England, carried out in accordance with the Lend-Lease Act (officially called the “US Defense Assistance Act”), undoubtedly contributed to the strengthening of the combat power of the USSR. Soviet people expressed their gratitude to the American and English peoples who helped the Red Army to smash the Wehrmacht divisions. The Soviet press and the writings of historians emphasized that the help of the Allies with weapons and various materials played a positive, but insignificant role in the struggle of the Soviet state against fascist aggression. Such an assessment was substantiated by comparative data on the ratio of Lend-Lease supplies to domestic industry and agricultural products; military equipment received from the USA, England and Canada and produced in the USSR during the Great Patriotic War.
Of particular importance to the USSR were the supplies by the Allies of military equipment and weapons, which in large quantities were required by the front. During the war years from the USA (until September 20, 1945), guns of various calibres — 7509, aircraft — 14,450 arrived in the USSR under Lend-Lease (there are other data that do not change the order of the ratio of military equipment and weapons received and produced in the USSR), tanks and self-propelled artillery mounts - 6903 [9].
According to Soviet historians,
US supplies amounted to: 1.6% for artillery, 12.5% for aviation, 6.7% for tanks and self-propelled guns relative to those produced in the USSR
From June 1941 to August 1945, the Soviet Union produced 112.1 thousand combat aircraft, 102.8 thousand tanks and self-propelled guns, 482.2 thousand artillery pieces, 351.8 thousand mortars. Thus, American deliveries amounted to 1.6% for artillery, 12.5% for aviation, and 6.7% for tanks and self-propelled guns relative to what was produced in the Soviet Union.
As for other types of weapons, as well as ammunition, their specific gravity was even less and amounted, for example, to machine guns only 1.7%, to pistols - 0.8%, to shells - 0.6% and mortars - 0.1 % of the level of production in the USSR.
Of great value to the Red Army were deliveries from the USA of cars - 427 thousand units.
Of the total number of vehicles in the Armed Forces, they amounted to 5.4% in January 1943, 19% in January 1944, and more than 30% in January 1945 [10].
US President Franklin D. Roosevelt signs Lend-Lease Act
The logical conclusion is drawn from this: not the help of the allies played a decisive role in providing the Red Army with weapons and military equipment. On the military weapons, which the people supplied their army, stood the Soviet mark. Domestic researchers rightly believe that the T-34 tanks, IL-2 aircraft, BM-13 (Katyusha) rocket artillery fighting vehicles and many other models of Soviet military equipment were second to none.
The supply of industrial goods amounted in size to 4% of total production in the USSR during the war, and according to some Western data, from 7 to 11% [11].
As for food supplies, the average annual export to the Soviet Union of grain, flour and cereal from the USA and Canada (in terms of grain) during the war years amounted to 2.8% of the average annual grain procurements in the USSR.
At the decisive moment of the battle of Stalingrad, Lend-Lease deliveries were practically stopped.
]Lend-lease deliveries were not great in the most difficult time - in 1941–1942.Until the end of 1941, under the Lend-Lease USA and England transferred 750 planes to the USSR (including 5 bombers), 501 tanks and 8 anti-aircraft guns, which, of course, was a good help, especially to the small tank fleet of the Red Army [12]. But nevertheless, these deliveries could not have a noticeable effect on the course and especially the outcome of the battle of Moscow, as well as on the course of the battles on the Soviet-German front as a whole. Former US President G. Hoover, who cannot be suspected of sympathizing with the USSR, admits that the Soviet army stopped the Germans even before the lend-lease reached her [13].
The volume of deliveries to the Soviet Union in 1942 was also small. At the decisive moment of the battle of Stalingrad, supplies were virtually halted. On July 18, 1942, after the unsuccessful posting of the PQ-17 convoy at the beginning of July, Churchill informed the Soviet government that he had stopped sending convoys by the Northern Sea Route, which delivered most of the cargo from abroad to the Soviet Union. The bulk of the armament and other materials was received by the USSR in 1944-1945, when as a result of the defeat of the fascist forces on the Soviet-German front, a radical turning point occurred during the Great Patriotic War and the entire Second World War.
This is recognized by many Western researchers. J. Harring, author of The Aid of Russia in 1941-1945, testifies to the fact that “supplies of equipment and gear to the Soviet Union ... in reality, they represented only a small percentage of Russian production” [14].
https://pravoslavie.ru/79771.html