[39]

Resaca
Battle of Resaca, in Georgia, where Harrison served under General Sherman
At the Battle of Resaca on May 15, 1864, Harrison faced Confederate Captain Max Van Den Corput’s artillery battery, which occupied a position "some eighty yards in front of the main Confederate lines".[40] Sherman, renewing his assault on the center of the Confederate lines begun the previous day, was halted by Corput's four-gun, parapet-protected artillery battery; the battery was well placed to bedevil the Union ranks, and became "the center of a furious struggle".[40] Corput's artillery redoubt was highly fortified "with three infantry regiments in...rifle pits and four more regiments in the main trenches".[41] Harrison, leading the 70th Indiana Infantry Regiment, massed his troops in a ravine opposite Corput's position, along with the rest of Brigadier General Ward’s brigade.[41] Harrison and his regiment, leading the assault, then emerged from the ravine, advanced over the artillery parapet, overcame the Confederate gunners, and eliminated the threat. The battery was captured by hand-to-hand combat, and intense combat continued throughout the afternoon.[41] Harrison's unit, now exposed, found itself immediately subjected to intense gunfire from the main Confederate ranks and was forced to take cover.