German prisoners of war in the United States
Members of the German military were interned as prisoners of war in the continental United States during both World War I and World War II. A total of 425,000 German prisoners lived in 700 camps across the United States during World War II. == World War I == Hostilities ended six months after the United States saw its first major combat action in World War I, and only a relatively small number of German prisoners of war reached the U.S. Many prisoners were German sailors caught in port by U.S. forces far away from the European battlefield. The first German POWs were sailors from SMS Cormoran, a German merchant raider anchored in Apra Harbor, Guam, on the day that war was declared.
Source: Wikipedia — German prisoners of war in the United States (CC BY-SA 4.0)