| |||||||||
The Union Army refers to United States Army during the American Civil War. When the American Civil War started there were about 16,000 men in the United States Army. 313 officers resigned to join the Confederate Army and defend the southern states.
On April 15, 1861, President Abraham Lincoln called on the states to provide 75,000 men for three months to put down the insurrection in the south. This was insufficient. Eventually, over two million men served in the Union Army, of which 359,528 died in action, from their injuries, or from disease.
President Abraham Lincoln appointed Ulysses S. Grant General-in-Chief of the Union Army in March 1864.
See also: Grand Army of the Republic