At which installation of the United States Army located in Suffolk County did Irving Berlin serve?
Yip Yip Yaphank: Yip Yip Yaphank is the name of musical revue composed and produced by Irving Berlin in 1918 while he was a recruit during World War I in the United States Army's 152nd Depot Brigade at Camp Upton in Yaphank, New York. Camp Upton: Camp Upton was an installation of the United States Army during World War I. Camp Upton:  It was located in Yaphank on Long Island in Suffolk County, New York.
Camp Upton