On April 28, 1946, a small group of American wives and children arrived at the port of Bremerhaven, West Germany, the first of thousands of military family members to make the trans-Atlantic journey. They were the basis of a network of military communities--"Little Americas"--that would spread across the postwar German landscape. During a 45-year period which included some of the Cold War's tensest moments, their presence confirmed America's resolve...