Complex sentence: He was later attached to the Tank Corps, commanding a battalion at the Battle of Cambrai (1917) and in 1918 was sent to the USA as British Liaison Officer to teach tank warfare at Camp Colt, Pennsylvania, with Major Eisenhower.
Split into simpler sentences: He was later attached to the Tank Corps, commanding a battalion at the Battle of Cambrai (1917). In 1918 he was sent to the USA as British Liaison Officer to teach tank warfare at Camp Colt, Pennsylvania with Major Eisenhower.