Invasion of South Georgia

The Invasion of South Georgia (Spanish: Operación Georgias), also known as the Battle of Grytviken, took place on 3 April 1982, when Argentine naval forces seized control of the east coast of South Georgia after overpowering a small group of Royal Marines at Grytviken.

The Argentine intervention had begun on 19 March, when a group of civilian scrap metal workers illegally arrived at Leith Harbour on board the transport ship ARA Bahía Buen Suceso and raised the Argentine flag. The scrap workers had been infiltrated by Argentine marines posing as civilian scientists.

Prelude
The only British presence at Leith on 19 March was an Antarctic Survey (BAS) team, whose leader, Trefor Edwards, handed a message from London to the commander of the Buen Suceso, captain Briatore, demanding the removal of the Argentine flag and the departure of the party. At the same time, the Argentine crew had to report to the top BAS commander in Grytviken, Steve Martin. Briatore replied that the mission had the approval of the British embassy in Buenos Aires.

Eventually, the Argentine captain ordered the lowering of the flag, but failed to report to Grytviken. The BAS commander sent a message to the Governor of the Falkland Islands, Rex Hunt (South Georgia being run as a dependency of the Falklands). After consulting London, Hunt was instructed to dispatch HMS Endurance (1967) to South Georgia with a detachment of 22 Royal Marines.

The reason for the landing of scrap metal workmen at Leith was a 1978 contract between an Argentine businessman, Constantino Davidoff, and the British company Christian Salvesen, for the scrapping of the abandoned whale factories and facilities on the island. Aware of the contract, the Argentine Navy conceived of a plan to hijack Davidoff's business in South Georgia, in order to establish an undercover base on the disputed territory. The action was code named Operation Alpha.

There had been already two other Argentine trips to South Georgia: on December 1981, on board the Argentine icebreaker ARA Almirante Irízar, when Davidoff made an inventory of the facilities; and on February 1982, when an alleged commercial rival of Davidoff, bank employee Adrian Marchessi, made an unannounced visit to Leith. Marchessi assessed Leith facilities on board the Panamanian registered yacht Caiman, which had sailed out of Mar del Plata. He later reported himself to Grytviken, claiming that he was part of Davidoff's scheme and giving the British authorities details of the December inspection and even of early Argentine trips during the 1970s.

The failure of the Argentines to comply with the diplomatic formalities prompted Whitehall to opt for a small-scale intervention. In the meantime, a formal protest was issued by the British embassy in Buenos Aires. The Argentine Foreign Minister's response appeared to defuse the crisis; the note asserted that the Buen Suceso would soon be leaving, and that the mission had no official sanction at all.

By the morning of 22 March the Buen Suceso left Leith harbour. However, in the afternoon, a BAS observation post detected the presence of Argentine personnel and passed the information to London. In consequence, the Foreign Office chose to order HMS Endurance to evacuate any Argentine personnel remaining in South Georgia.

The British moves met with a series of Argentine countermeasures: the corvettes ARA Drummond and ARA Granville were deployed between the Falklands and South Georgia, which would have allowed them to intercept the Endurance and remove any Argentine personnel on board. In addition, upon arrival at Leith, HMS Endurance found the Antarctic Survey ship ARA Bahía Paraíso at anchor. This vessel landed a party of 10 naval commandos picked up from South Orkney Islands.

Facing the potential for military action, the Foreign Office sought some sort of compromise. Lord Carrington proposed to his counterpart, Nicanor Costa Méndez, to indulge the workers presence at Leith, given the proper documentation, which could include the stamping of temporary permissions instead of passports, a concession crucial to the Argentine position. The Argentine intention, however, was that the arrival of any of its citizens to South Georgia should follow the procedures agreed on the communications treaty of 1971. Governor Rex Hunt strongly rejected this extension of the agreement, valid only for the Falklands jurisdiction, and raised his concerns to the British Government. Costa Mendez left things in a limbo; both countries were then on the brink of conflict.

2 April
Shortly before the Argentine landings on the Falklands, the Bahía Paraíso and the Endurance were playing a cat-and-mouse game around South Georgia, until 31 March, when the ships lost track of each other. The British plan was that Martin would be in charge until the Argentine forces showed any hostile intentions. If that occurred, Acting Lieutenant Keith Mills, the most senior officer of the Royal Marines party, would take command. On 2 April, Captain Alfredo Astiz, a veteran of the Dirty War, whose extradition was requested by France for human rights violations, announced to the Argentine party in Leith that Argentina had taken over the Falklands.

Meanwhile, the Argentine navy ordered the corvette ARA Guerrico to join the Bahía Paraíso, equipped with two helicopters (an Army Puma and a navy Alouette III ) and carrying 40 marines, along with Astiz team at Leith. The aim was the capture of Grytviken. The group would be called Grupo de Tareas 60.1 (Task Force 60.1), under the command of Captain Trombetta, on board Bahía Paraíso.

After learning of the fall of Stanley, Mills took urgent measures: his men fortified the beach at King Edward Point, near the entrance of the bay with wire and landmines, and prepared defences around the BAS buildings. The Endurance, some miles offshore, would provide communication between the small British detachment and London. The new rules of engagement authorized Mills to "fire in self defence, after warning". A later statement from the British government instructed the marines to "not resist beyond the point where lives might be lost to no avail."

On the other side, the Argentine plans for 2 April in South Georgia were thwarted by poor weather. These plans consisted in the landing of Astiz's special forces on Hope Point, near Grytviken, to secure the arrival of the bulk of the land forces, carried by helicopter. The Guerrico would provide naval fire support outside the bay. But the arrival of the corvette was delayed by a storm, so a new course of action was decided for the next day.

According to the new plan, the first landing would be led by Guerrico's Alouette helicopter, followed by three waves of marines on a Puma from Bahia Paraiso. After sending a radio message demanding that the British surrender, Trombetta would order the Guerrico to make a thrust into Grytviken harbor, right in front of King Edward point. The Argentine rules of engagement authorized the corvette to fire her weapons only at request of the landing parties. Astiz's men would remain in the rearguard on board the Bahia Paraiso. All the forces involved should avoid enemy casualties as long as possible. Official British historian Lawrence Freedman believes that Trombetta made these provisions thinking he was dealing only with the BAS team.

3 April
At 7:30 A.M., as the weather improved, Bahia Paraiso demanded the surrender of Grytviken. The message intimated that Rex Hunt had surrendered not only the Falklands, but also its dependencies, which was untrue. Lt Mills copied and forwarded the message to HMS Endurance, with the intention of buying time. At the same time, he invited the BAS personnel to take cover inside the local church. By then, the Alouette was overflying Grytviken and the Guerrico was making her first entrance into the cove.

According to Mayorga, Captain Carlos Alfonso, commander of the Guerrico, hesitated whether or not to expose the corvette in such narrow waters. Mayorga also supports Freedman's speculation about Trombetta's wrong assumptions regarding British military presence around the harbour, citing an official report. Trombetta also had some reservations about the combat readiness of the warship since she had been in dry dock just days before departing from her home base at Puerto Belgrano.

Helicopter shot down
The Puma landed a first group of 15 Argentine marines on King Edward point at 11:41 AM, on the opposite side from Shackleton House, where the Royal Marines were entrenched. By then, the Guerrico knew that the general area of deployment of the Royal Marines was on the northern shore of the cove's mouth. The second wave of marines took off from Bahia Paraiso deck on board the Puma at 11:47. The commander of the Argentine group already inland, Lt Luna, requested via the Guerrico—he had no direct communication with Bahia Paraiso—that the second wave should be equipped with 60 mm mortars, but the party was already in flight. The landing was to take place to the east of Luna’s position, well within the view of the British detachment.

The helicopter was spotted by Mills and his men and met by intense automatic fire. The pilot was able to cross the bay and crash-landed the helicopter on the southern bank of the bay. Two men were killed and four wounded. At the same time, Luna’s troops started their march towards Shackleton House, but the marines pinned them down with heavy gunfire. Therefore, Luna asked the Guerrico for fire support.

ARA Guerrico
The corvette then carried out her second thrust into the cove, and at 11:55 opened fire. To her commander's disappointment, the 20 mm guns jammed after the first shot, and the 40 mm mounting after firing just six rounds. The 100 mm gun became useless after the first shot. Completely exposed, the warship had no other choice but to go ahead in order to put about. At 11:59, the corvette was hit by small arms fire and 84 mm Carl Gustav anti-tank shells.

According to Mills, his party opened fire from a distance of 550 metres. The shooting killed one seaman and injured five others, damaging electrical cables, the 40 mm gun, one Exocet launcher and the 100 mm mounting. All Argentine sources acknowledge that more than 200 small arms rounds hit the corvette. In the meantime, Lt Busson's Alouette had been ferrying more Argentine Marines ashore, out of range of the British weapons.

While the battered Guerrico steered out of the bay, the Argentine troops resumed the exchange of fire with Mills' marines. One of them was hit on his arm. Once she was out of range, Guerrico reopened fire with her 100mm main gun, now back in service. This convinced Mills that things were over, and he ordered his marines to cease fire. This happened at 12:48 according to Mayorga. Mills approached the Argentine positions waving a white coat, and surrendered, "after achieving his aim of compelling the Argentine troops to use military force."

Mills and his men were taken in custody by Astiz's group, who had been left in reserve during the battle. HMS Endurance dispatched one of her Wasp helicopters to Cumberland Bay. The aircraft landed there, and spotted an Argentine corvette and a transport ship inside the cove, but found no signs of fighting. The Endurance remained in South Georgia waters until 5 April.

Aftermath
The corvette Guerrico, which had lost 50% of her firepower due to combat damage, left Grytviken along with Bahia Paraiso at 3:15 of 4 April, bound for Rio Grande. She spent three days in dry dock for repairs. The marines were disarmed and taken on board the Bahia Paraiso, ferried to Rio Grande and then airlifted to Montevideo.

Marine Andrew Michael Lee later said he and the other British prisoners were treated well and there was a feeling of respect between the two sides: "They bore us no malice. They did understand the job we did. They were Marines, like ourselves." They eventually returned to the United Kingdom on 20 April. Some British BAS members working in remote areas continued their activities undeterred until the British reconquest. Wildlife film maker Cindy Buxton and her assistant were evacuated by a helicopter from HMS Endurance on 30 April. She would later reveal that Royal Navy personnel had given her and Annie Price a pistol and that both female journalists had been trained how to use the weapon.

The Argentine Navy left a detachment of 55 marines on the island. The 39 scrap metal workers also remained in Leith. South Georgia was retaken by British forces on 25 April 1982, during Operation Paraquet.

Decorations and honours

 * Lieutenant Mills and Lieutenant Commander John Anthony Ellerbeck (who commanded Endurance's helicopters) were awarded the Distinguished Service Cross.
 * Sergeant Peter James Leach, RM, was awarded the Distinguished Service Medal.
 * Captain Nick Barker, HMS Endurance's captain, was appointed Commander of the Order of the British Empire.
 * Principal Corporal (Gunnery) Francisco Solano Páez was awarded La Nacion Argentina al Valor en Combate.