On April 30, 1864, the 107th and the rest of the Army of the Ohio was attached to Sherman's command as it was beginning to push toward Atlanta. On May 14 and 15 they participated in the Battle of Resaca, suffering only minor casualties. Throughout the month of June the men participated in the fighting around Marietta, Georgia, including the bloody assaults on Kennesaw Mountain. They served in the trenches during the Battle of Atlanta in July and August and took part in the occupation of Decatur, Georgia in September.