World War II resulted in another hierarchical change on Governors Island, turning it into an administrative center. In 1939, the island became the headquarters of the U.S. First Army, and two years later the Eastern Defense Command was also established on the island. In conjunction, 72 temporary structures were erected on the island. Governors Island became a U.S. Army recruitment center in 1941, and was processing 1,500 recruits daily by 1942. This volume proved to be overwhelming due to the island's isolation. In October 1942 the recruitment station was moved to Grand Central Palace, near Grand Central Terminal. Following the end of World War II in 1945, Governors Island continued to be the U.S. First Army's headquarters, and few substantive changes were made. Some buildings were razed in the southwest corner of the island, and an administrative office was destroyed to make way for a parking lot, but overall the building layout remained relatively untouched.