Lend-Lease sent 17 million tonnes of ammunition, food, fuel, weapons, tanks, airplanes and even railroad locomotives to the USSR during the Second World War—most of it from the USA. This episode describes how the icon of capitalism saved the workers' and peasants' paradise from fascism. 

Map1: Lend-Lease routes

Map 2: Arctic convoy route

Map 3: Persian corridor

Map 4: Pacific route

Sources: 

Antony Beevor, The Second World War. London: Little, Brown and Company, 2012.

Max Gethings,  "Britain Alone — Rethinking One of the Second World War’s Enduring Myths". Military History Now, 18 May 2023  https://militaryhistorynow.com/2023/05/18/britain-alone-rethinking-one-of-the-second-world-wars-enduring-myths/

Franklin D. Roosevelt, "Fireside Chat On the Arsenal of Democracy," December 29, 1940.https://en.wikipedia.org/wiki/File:Franklin_D._Roosevelt_-_December_29,_1940_-_On_the_%22Arsenal_of_Democracy%22.ogg 

Wikipedia: Lend-Lease  https://en.wikipedia.org/wiki/Lend-Lease