On the night of 30 May, K Company of 42 CDO boarded three Sea King helicopters and moved forward of San Carlos to secure the commanding heights of Mount Kent at , one of the tallest of the peaks surrounding Stanley where Major Cedric Delves' D Squadron from the Special Air Service (SAS) had established a strong presence. When the Royal Marines reinforcements and 7 'Sphinx' Battery of the 29th Commando Regiment Royal Artillery aboard a Chinook helicopter, arrived at the landing zone, 3 kilometres (2 miles) behind the ridge of the mountain, they were met by gun-flashes, mortar detonations and tracer rounds as a second clash involving D Squadron was taking place. Captain Gavin Hamilton's Mountain Troop that had spotted enemy movement in the form of Captain Tomás Fernández' 2nd Assault Section, 602 Commando Company trying to exit the area after having taking cover among the boulders and caves on Bluff Cove Peak the day before.