He was promoted to major general on November 29 , 1862 .
French commanded the 3rd Division of the II Corps at the Battle of Antietam , making the first attack on Confederate units in the Sunken Road .
French was promoted to major general on November 29 , 1862 .
French commanded the 3rd Division of the II Corps at the Battle of Antietam , making the first attack on Confederate units in the Sunken Road .