Editing 31st Infantry Regiment (United States) (section)

===China service===

On 1 February 1932, the regiment was ordered to Shanghai, China, arriving on 4 February. There, the unit guarded a section of the [[Shanghai International Settlement|International Settlement]], during a period of considerable fighting between Japanese and Chinese troops. Reinforcing the [[4th Marine Regiment (United States)|4th Marine Regiment]] and a predominantly British International Force, the 31st Infantry deployed hastily by sea to protect Shanghai's International Settlement. Although adjacent parts of Shanghai were demolished by fierce fighting between Japanese and Chinese troops, the International Settlement remained an island of security. By April, some officers sent for their families from Manila and billeted them at a hotel in the International Settlement. On 1 July 1932, when the crisis passed, the unit sailed for the Philippines on the USAT ''Republic''. For their service in Shanghai, they received the [[Yangtze Service Medal]] (Marines). The regiment’s mission in the Philippine Department’s defense plan was to deploy to [[Corregidor]] and act as the beach defense force for the Harbor Defenses of Manila and Subic Bays. The regiment was reassigned to the Philippine Division in December 1941.