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The flag was changed to have 34 stars. (for Kansas)
After the Union rout at Bull Run and Winfield Scott's retirement, Lincoln appointed Major General George B. McClellan general-in-chief.
In July 1861, a march by Union troops under the command of Maj. Gen. Irvin McDowell on the Confederate forces led by Gen. P. G. T. Beauregard near Washington was repulsed at the First Battle of Bull Run (also known as First Manassas).