Editing Lou Diamond (section)

==Inter-war period==
Railroading, and civilian life in general, did not suit Diamond well, and on September 23, 1921, he re-enlisted in the Marine Corps.

Diamond itched for more action and he soon got it in [[Shanghai]], with Company M, [[3rd Battalion 4th Marines|3rd Battalion]], [[4th Marine Regiment]]. But the Sino-Japanese conflict, in Diamond's opinion, was "not much of a war," and on June 10, 1933, he returned to the United States, disembarking from the [[USS Henderson (AP-1)|USS ''Henderson'']] (AP-1) at [[Mare Island]], [[California]]. By then he was a [[gunnery sergeant]].

Diamond returned to Shanghai with his old unit, the 4th Marines, ten months later, and then was transferred to the [[2nd Marine Regiment (United States)|2nd Marines]] in December 1934. He returned to the U.S. in February 1937. Two years after his promotion to [[master gunnery sergeant]] on July 
10, 1939, he was assigned to the Depot of Supplies at Philadelphia to help design a new [[infantry]] pack.