During the exercise, Marines refine their skills to better support Division operations in an expeditionary environment. - U.S. Marines receive their final orders to establish a forward operations center Jan. 23, 2018 on Camp Hansen, Okinawa, Japan, for Exercise Samurai. During the exercise, Marines refine their skills to better support Division operations in an expeditionary environment. The Marines are assigned Headquarters and Service Battalion, 3rd Marine Division.