The United States Navy, during the Civil War termed the Union Navy, had separate traditions regarding African Americans. The Militia Acts of 1792 excluded black men from serving in the United States Army. This policy remained in place until the second year of the Civil War. The Navy, however, never had such a policy. In the 1840s they limited the number of blacks serving to 5 percent of the enlisted force. But before and after, black and white men served together often performing the same duties. Up to the start of the Civil War, several hundred black men were serving in the Navy. After Fort Sumter was captured by Confederates, a large number of men enlisted in the Navy. The percentage of black men in the Navy rapidly increased. In 1861, they made up about 6 percent of the force. By the summer of 1862 they made up about 15% of the enlisted men.