A Royal Canadian Air Force CF-18 Hornet from 409 Tactical Fighter Squadron conducts an aerial refueling with an Air Force KC-135 Stratotanker as part of Rim of the Pacific 2008. RIMPAC is the world's largest multinational exercise and is scheduled biennially by the U.S. Pacific Fleet. Participants include the United States, Australia, Chile, Canada, Japan, the Netherlands, Peru, South Korea, Singapore and the United Kingdom.