Which innovative supply chain management system allowed the Allies to build ships faster than German U-boats could sink them during WWII's Battle of the Atlantic?

World War II was not just won through valor and strategy, but also through mastery of logistics and supply chains. The ability to move equipment, ammunition, food, and troops efficiently across continents and oceans proved decisive in the Allied victory. This trivia question explores one of history's most impressive military supply chain achievements that changed the course of the war.

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The Liberty Ship program, which reduced shipbuilding time from 230 days to just 42 days through standardized design and assembly line techniques
Operation Drumbeat, which utilized a convoy system that improved ship-to-shore delivery efficiency by 75%
The Manhattan Distribution Network, which created floating supply depots in the mid-Atlantic to reduce transatlantic shipping time
The Mulberry Harbor system, which revolutionized just-in-time delivery of war materials directly to combat zones