BEIJING Aug. 20 -- Recently, a special combat brigade under the 72nd Group Army of the People’s Liberation Army (PLA) conducted the sea-crossing and island-landing training in waters of East China Sea, including maneuvering on rigid-hull inflatable boat (RHIB), swimming in battle gears, armed cross-country race, island-landing and cliff-climbing, etc., in a bid to test the comprehensive combat capabilities of the service members under extreme conditions.