The island culture was heavily impacted by the fight for Kwajalein Atoll during World War II and the United States nuclear testing program on Bikini Atoll from 1946 and 1958. Former residents and their descendants who were ousted after World War II receive compensation from the U.S. government. This dependence on aid has shifted residents' loyalty away from traditional chiefs. The island culture is heavily influenced today by the presence of about 2000 foreign personnel on the Ronald Reagan Ballistic Missile Defense Test Site, which includes rocket launch, test, and support facilities on eleven islands of the Kwajalein Atoll, along with Wake Island and Aur Atoll.