There was a more pressing action on the eastern edge of Stanley. Twenty LVTP-7A1 Argentine tracked amphibious armoured personnel carriers from Lieutenant-Commander Guillermo Cazzaniga's 1st Amphibious Vehicles Battalion, carrying D and E Companies of the 2nd Marine Infantry Battalion (BIM-2) from Puerto Belgrano, had been landed from the tank landing ship ARA "Cabo San Antonio" at Yorke Bay, and were being watched by a section of Royal Marines under the command of Lieutenant Bill Trollope. Two Argentine-built landing craft also took part in the landings later that morning and would fall into British hands at the end of the fighting in June.