Lincoln declared that “the law of nations … permit no distinction as to color in the treatment of prisoners of war." He stated that if the Confederacy executed any Union soldier, the Union would do the same to a Confederate soldier. If the Confederacy enslaved a Union soldier, a Confederate soldier would be put to hard labor. While Davis publicly denounced Lincoln's order, it did have the desired effect on black prisoners of war. No more were executed or sent into slavery. But, afterwards it depended on the commander of the Confederate units as to what to do about taking black prisoners. Many simply did not take prisoners of war but shot them as they were surrendering. This happened at the Battle of Poison Spring, the Battle of Fort Pillow and at the Siege of Petersburg.