As the threat of the Axis powers passed, Congress used the geopolitical realities of the Cold War to justify further veteran-friendly legislation. During the Cold War, the Selective Service and Training Act of 1940 underwent a series of modifications including the Selective Service Act of 1948 and the Universal Military Training and Service Act of 1967. The protections set out in the Selective Service and Training Act of 1940 generally remained the same while the modifications supported the conscript-based military of the Cold War era.