Marines with 3rd Amphibious Assault Battalion conducted a landing at a Camp Pendleton, Calif., beach, Sept. 30 The exercise prepared Marine units to deploy forces quickly on short notice to any place in the world for a wide range of contingencies, from humanitarian aid and disaster relief to combat. - Marines with 3rd Amphibious Assault Battalion conducted a landing at a Camp Pendleton, Calif., beach, Sept. 30 The exercise prepared Marine units to deploy forces quickly on short notice to any place in the world for a wide range of contingencies, from humanitarian aid and disaster relief to combat.