Truman administration policy sought to strengthen American arms makers' resilience to aerial attack by encouraging more decentralized weapons production – away from Detroit. The U.S. curtailed civilian automotive production to boost military production with the onset of the Korean War. As a result, Detroit's newly unemployed automotive workers found little work, while tank manufacturers outside Michigan lacked skilled workers. Truman's policy also counted on civilian factories being able to quickly transition to war-time production. However many factories lacked needed tank production machinery, done away with during World War II demobilization.