Changes

Following [[Operation Rosario (Falklands/Malvinas War)]],  the Argentinian occupation of the Falkland/Malvinas Islands, 42 Commando and 45 Commando (40 and 45 CDO) of the British Royal Marines were deployed as part of Brigadier Julian Thompson's 3 Commando Brigade to retake the islands in Operation ''Corporate''.  

Following [[Operation Rosario (Falklands/Malvinas War)]],  the Argentinian occupation of the Falkland/Malvinas Islands, 42 Commando and 45 Commando (40 and 45 CDO) of the British Royal Marines were deployed as part of Brigadier Julian Thompson's 3 Commando Brigade to retake the islands in Operation ''Corporate''.  

==British advance==

==Patrol action==

Following ''Kilo'' Company's helicopter flight forward on the night of May 31st to reinforce D Squadron 22nd Special Air Service (SAS) Regiment defending Mount Kent from Argentinian Special Forces attacks, the rest of 42 Commando arrived in helicopters, and were eventually ordered to secure Mount Challenger.

Following ''Kilo'' Company's helicopter flight forward on the night of May 31st to reinforce D Squadron 22nd Special Air Service (SAS) Regiment defending Mount Kent from Argentinian Special Forces attacks, the rest of 42 Commando arrived in helicopters, and were eventually ordered to secure Mount Challenger.

Sergeant Ian Allum's Recce Platoon from the 2nd Scots Guards Battalion attempted to pinpoint the heavy weapons emplacements on Harriet from their cover in Port Harriet House but heavy mortar fire dispersed them on 9 June.

Sergeant Ian Allum's Recce Platoon from the 2nd Scots Guards Battalion attempted to pinpoint the heavy weapons emplacements on Harriet from their cover in Port Harriet House but heavy mortar fire dispersed them on 9 June.

45 Commando's night attack would also be silent without any preliminary artillery fire. Lieutenant-Colonel Andrew Whitehead's plan was for ''X-Ray'' Company to leave their start line at 9.00 pm, and having taken the south western peak (''Long Toenail'') around two hours later, to set up a fire support base that included 40 Commando's Milan Troop. ''Zulu'' Company would then assault the northern peak (''Summer Days''), and ''Yankee'' Company would clear the eastern end of Two Sisters.

45 Commando's night attack would also be silent without any preliminary artillery fire. Lieutenant-Colonel Andrew Whitehead's plan was for ''X-Ray'' Company to leave their start line at 9.00 pm, and having taken the south western peak (''Long Toenail'') around two hours later, to set up a fire support base that included 40 Commando's Milan Troop. ''Zulu'' Company would then assault the northern peak (''Summer Days''), and ''Yankee'' Company would clear the eastern end of Two Sisters.

On June 11th, 45 Commando less ''X-Ray'' Company left their positions behind Mount Kent and moving around the north side, reached the main start line (''Pub Garden'') as planned. Meanwhile, Captain Ian Gardiner's ''X-Ray'' Company, marching down between Mount's Kent and Challenger and heavily weighed down, especially by the Milans, arrived at the start line over two hours late. After a short rest, they began their move towards ''Long Toenail'' at 11.00 pm local time.

On June 11th, 45 Commando less ''X-Ray'' Company left their positions behind Mount Kent and moving around the north side, reached the main start line (''Pub Garden'') as planned. Meanwhile, Captain Ian Gardiner's ''X-Ray'' Company, marching down between Mount's Kent and Challenger and heavily weighed down, especially by the Milans, arrived at the start line over two hours late. After a short rest, they began their move towards ''Long Toenail'' at 11.00 pm local time.

''X-Ray'' Company headed across the open ground towards ''Long Toenail'' led by Lieutenant James Kelly's 1 Troop, and less than a mile short of the peak, Lieutenant David Stewart's 3 Troop took over the lead, but halfway up was stopped by heavy machine gun fire and forced back. The enemy positions were hit by Milans and some mortar fire, and now Lieutenant Chris Caroe's 2 Troop pushed on to the summit under naval artillery fire. Reaching there, they were forced back by Argentinian shellfire, but shortly returned driving off the Argentinian 3rd Platoon.  

''X-Ray'' Company headed across the open ground towards ''Long Toenail'' led by Lieutenant James Kelly's 1 Troop, and less than a mile short of the peak, Lieutenant David Stewart's 3 Troop took over the lead, but halfway up was stopped by heavy machine gun fire and forced back. The enemy positions were hit by Milans and some mortar fire, and now Lieutenant Chris Caroe's 2 Troop pushed on to the summit under naval artillery fire. Reaching there, they were forced back by Argentinian shellfire, but shortly returned driving off the Argentinian 3rd Platoon.