Fort Lincoln Internment Camp was a military post and internment camp located south of Bismarck, North Dakota, USA, on the east side of the Missouri River. It was first established as a military post in 1895 to replace Fort Yates, following the closure of the original Fort Abraham Lincoln on the west side of the Missouri River in 1891. In April 1941, it was converted into an internment camp for enemy aliens (at that point in time, German seamen whose ships were in port). After the outbreak of World War II, it was expanded and used for U.S. citizens of Japanese and German descent, holding some 3,600 prisoners at its peak capacity.