Defense, U.S. Department of

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  • The U.S. Department of Defense (DOD), created in 1947, is an executive branch department charged with national security and providing and maintaining the nation's military. The military's significant presence existed in the West even before World War II as an expanding country realized its need for having bases and the industrial support infrastructure to provide expedited access to its expanding Pacific Basin geopolitical interests. This reality was vividly demonstrated to U.S. citizens with the deadly Japanese attack on Pearl Harbor on December 7, 1941, and subsequent years of fighting throughout the Pacific operational theater.

    Following the war, U.S. commercial, military, and political leaders realized the United States could not revert to isolationism and began a process of expanding the military's presence in the West and the ...

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