Personnel and units of the U.S. military and Republic of Korea (ROK) Combined Forces Command (CFC) conducted their annual combined and joint exercise, Reception, Staging, Onward-movement, & Integration and Foal Eagle 2006 (RSOI/Foal Eagle 06) March 24-31. RSOI and Foal Eagle are Korean-theaterwide computer-simulated and field exercises designed to evaluate and improve the U.S. and ROK forces' ability to coordinate the procedures, plans and systems necessary to defend the ROK in a contingency. It focuses on ground maneuver, air, naval, expeditionary, and special operations, as well as command and control training. Foal Eagle involved more than 70 U.S. and ROK Navy ships and more than 100 aircraft from all services of both the U.S. and ROK armed forces.