Relevant deployments While the majority of the 5th Marine Battalion was stationed on Mounts Tumbledown and William, M Company was positioned along the slopes of Sapper Hill. Their deployment was reinforced by a number of batteries of the 1st Marine Anti-Aircraft Battalion, as well as a contingent from the Marine Dog Platoon with five
military working dogs: Ñaro, Nego, Vogel, Warner and Xuavia, their handlers and accompanying riflemen, all under the command of Sub-Lieutenant Miguel Paz. Also present on Sapper Hill were half a battery of
155 mm guns from the 101st Artillery Group, the 120mm Heavy Mortar Platoon (under Lieutenant Alejandro Landa) from Captain Ramón Alberto Varela's C Company (3rd Army Infantry Regiment), and the Reconnaissance Platoon (under Lieutenant Norman Osvaldo Reynoso) from the 3rd
General Manuel Belgrano Mechanized Infantry Regiment. A mobile Westinghouse
AN/TPS-43 long-range
radar had been positioned on Sapper Hill since April. On 1 May, a Royal Navy bombardment of Sapper Hill killed Private Daniel Cabiglioli (from M Company). The Westinghouse radar was damaged and would remain out of service for several days. That night, patrolling near Sapper Hill, a five-man squad (under Sergeant Miguel Angel Martinez) from the 3rd Regiment's Reconnaissance Platoon discovered an abandoned
rubber boat. The following day, the 1st Assault Section of the 601st Commando Company, led by First Lieutenant José Martiniano Duarte, checked the boat for explosives before transporting it to Port Stanley for further examination. In early June, Lieutenant Reynoso's Recce Platoon exchanged small arms fire with a British patrol, most likely G Squadron SAS, who had commandeered a yacht at
Bluff Cove Settlement to operate behind Tumbledown and sent men forward in a helicopter. On 12 June, Harrier XW919 was hit by shrapnel, possibly from a Tigercat missileand damaged while dropping CBUs on an artillery position near Sapper Hill. During the recovery, the aircraft caught fire on
Hermes flight deck, owing to a fractured reaction pipe. Argentine sources claim that the aircraft was hit by AAA immediately after an attack on a
155 mm howitzer, which was lightly damaged with six soldiers wounded. The Harrier was repaired and though still operational, was ultimately transferred to the School of Flight Deck Operations at
Culdrose, and eventually donated to the
Polish Aviation Museum,
Kraków. On 13 June, a Welsh Guards messenger (Lance Corporal Chris Thomas), bringing forward food supplies to Major Christopher Drewrywe's Number 2 Company (1WG), was killed when his motorbike ran over a mine or was hit by mortar fire.
Last Stand At dawn on 14 June, Major Phillip Neame's D Company of 2 PARA, engaged in the final stages of the
Battle of Wireless Ridge, reported observing a large concentration of Argentine forces regrouping on Sapper Hill. Argentine artillery units and a platoon from the 6th Regiment under Second Lieutenant La Madrid remained operational, engaging Neame's company before incurring further casualties, including Privates Horacio Echave and Horacio Balvidares. As Argentine forces repositioned on Sapper Hill, additional casualties were sustained due to a British bombardment and retaliatory fire from Wireless Ridge. Among those killed were Sergeant Víctor Hugo Juárez from the 5th Marine Battalion Headquarters, Private Vicente Antonio Díaz from the 1st Amphibious Engineers Company, and Private Ricardo Ramírez from the 81mm Mortar Platoon stationed on Mount William. The Welsh Guards and Royal Marine Battalion were placed on standby to support the British offensives against Mounts Tumbledown and William. Their orders were to advance toward Sapper Hill only once these objectives had been secured. However, during their movement, they became entangled in a minefield, significantly delaying their progress. While attempting to extricate themselves, they came under heavy mortar fire from Argentine positions on Sapper Hill. Major Drewrywe's Welsh Guards eventually reached the base of Sapper Hill, only to find that the Argentine M Company remained in position. As a result, the Guardsmen were compelled to withdraw, using the morning fog as cover and this time successfully avoiding the minefield. Due to these delays, it was decided that 45 Commando should advance from Two Sisters to seize Sapper Hill. As 45 Commando moved forward, Alpha and Charlie Companies of 40 Commando evaded detection by Argentine defenders and were airlifted by helicopter. They landed on the slopes of Sapper Hill shortly before 45 Commando's arrival, and together, both units launched an assault, ultimately securing the hill.
Argentine Retreat Unwilling to abandon Tumbledown, Commander Carlos Robacio on Sapper Hill was planning to counterattack and drive back the Guardsmen. Only the personal intervention of Colonel Félix Aguiar, the 10th Brigade Chief of Staff, via radio brought the fighting to an end in the Tumbledown sector. The 5th Marines worked their way back into Stanley, leaving the 2nd Platoon of Marine Second Lieutenant Marcelo Davis and 3rd Platoon of Marine Second Lieutenant Alejandro Koch of M Company to cover the retreat. The Argentine Marine companies withdrew safely, although pursued by artillery fire and hit by a
laser-guided bomb dropped by
Wg Cdr Peter Squire in XZ997 killing two of the Marine canines,
Nego and
Ñaro. Argentine
Panhard armoured cars were moved forward to the edge of Stanley to cover the retreating Argentine Marines. Marine Privates Roberto Leyes, Eleodoro Monzón and Sergio Ariel from M Company were killed protecting the Argentine retreat from Sapper Hill. Six Royal Marines were wounded by mines and small-arms fire securing Sapper Hill, including four Marines from 40 Commando, one Sapper from Condor Troop and a field-grade officer (Major Brian Armitage) from 3 Commando Brigade HQs. The Royal Marines, under Second Lieutenant Carl Bushby, defended their position in 9 Troop as Argentine Marines, commanded by Davis, launched a counterattack, the final assault of the ground campaign. Two British
Sea Kings parked within range of Koch's Marines were repeatedly hit and damaged by machine-gun fire and rifle grenades from Sergeant Miguel Angel Vaca and Corporal Carlos Jorge Sini, according to Marine Chris Pretty: We had landed on the small, light-coloured gravel track just at the base of the rocky spine of Sapper Hill, and the choppers were being shot to pieces. We were still inside. We were being shot to pieces. I remember someone shouting, 'It's okay, it's only the Gurkhas on Mount William.' ... Exit, road and think. I remember the tail rotor being very close to me as I crouched on the road. The choppers revved up and leapt into the air. I remember seing them lift off with bits coming off them and banking away to the right and away they went. At the foot of the hill, there was an enormous minefield. Lieutenant Paul Allen and Marine Wayne McGregor of 7 Troop were both wounded activating anti-personnel mines. A group of
Sappers from Condor Troop went ahead to clear a path through the mines, with Sergeant Peter Thorpe wounded in the process. Tanks of the Blues & Royals moved forward to provide covering fire if required. During the helicopter evacuations of the wounded, Captain Sam Drennan of No. 656 Squadron would win the
Distinguished Flying Cross for rescuing a wounded Gurkha and Guardsman from the middle of a minefield. However, when the Royal Marines and Welsh Guardsmen advanced again, they found Sapper Hill abandoned. The delay caused by the mines probably saved many lives. The Argentine Marine companies had been deeply entrenched and were well equipped with
heavy machine guns. To Guardsman Tracy Evens, the Sapper Hill positions looked impregnable: We were led to an area that the company would rest at for the night, I still took in the fact that the Argies had prepared Sapper Hill well, they had depth positions that would have made the task of taking it very hard. As the Guardsmen secured their positions, the British forces lost a
Volvo Bv 202 tracked vehicle to a mine in the Sapper Hill sector. "We ran over a mine. I went up through the roof and the vehicle went up and was turned right round by the explosion", recalled Major Brian Armitage who was shortly evacuated to receive medical treatment. ==Military recognition==