The 7th Infantry Regiment is a unit of the Argentine Army (Ejército Argentino) based at Arana (La Plata), Buenos Aires Province, Argentina.

Given the scarcity of experienced officers and the lack of training among the infantry fighting the well-armed and disciplined Spanish-backed enemy, the 7th Regiment soldiers could not maintain their assigned positions and soon joined in the retreat of the Patriot forces with the unit being disbanded in the aftermath of defeat.

However, in 1812, it was officially announced that plans were in progress for the reformation the regiment with horseback grenadiers and supporting infantry recruited from the patriots residing in the Banda Oriental Province.

They crossed the Andes through the Paso de Los Patos, taking part in the Battles of Achupayas, Putaendo, Las Coimas and Guardia Vieja.

The combat companies were then placed under the command of General Bernardo O' Higgins, taking part in the liberation of southern Chile, fighting at the Battles of Gavilán, Carampague and Talcahuano.

There were trips to the field-firing area at San Miguel del Monte, and the senior soldiers were given specialist weapons courses, MAG machine-guns, FAP light-machine-guns, 120-mm and 81-mm mortars, radios and RASIT ground-surveillance radar.

Major Oscar Ramón Jaimet, the Operations Officer of the 6th Mechanized Infantry Regiment, took over the formation of these helicopter-borne platoons of hand-picked conscripts and NCOs.

Private Santiago Fabian Gauto, a soldier of Guarani Indian heritage, was selected to be part of the Commando platoon (under First Lieutenant Mario Gabriel Dotto) for the 7th Regiment that included learning how to stop enemy reinforcements arriving by train: We had instructions at night in all weathers.

In an interview with Fernando Calles from Radio Las Fores (AM 1210), Private Vicente Bruno in 2022 talked proudly about his uncle that had fought as part of the Italian Army in the North African Campaign during the Second World War.

Private Omar Anibal Brito (KIA, killed in action) from the 7th Regiment's B Company would not be so lucky, having several run-ins with his superiors and even going ausente sin licencia (absent without leave or AWOL), he would miss out on the rewards for good behaviour and even spend time in the lock-up cell.

The culmination of the training cycle for the conscripts consisted of a brigade-sized mechanized infantry assault with supporting IAI Dagger fighter-bombers from the Argentine Air Force in the General Acha Desert in La Pampa Province in October 1981.

"[9] Lieutenant-Colonel Omar Giménez's 7th Mechanized Infantry Regiment (Regimiento de Infantería Mecanizado 7 'Coronel Conde' or RI Mec 7) was deployed to the Falkland Islands, where it fought in the battles for Mount Longdon and Wireless Ridge, sustaining 36 killed and 152 wounded[10] and around 100 taken prisoner of war.

[11] Between 13–14 April, RI Mec 7 was flown to Stanley Airbase to relieve the 3rd Rifle Platoon (Lieutenant Héctor Edgardo Gazzolo) from Delta Company 2nd Marine Infantry Battalion (D/BIM 2) and 3rd Rifle Platoon (Lieutenant Alfredo José Imboden) from Hotel Company 3rd Marine Infantry Battalion (H/BIM 3) holding Mount Longdon and Wireless Ridge in Sector Plata (Silver).

Private Vicente Bruno recalls Second Lieutenant Juan Domingo Baldini commandeering a truck in order to help get his 1st Rifle Platoon from B Company 7th Regiment (B/RI Mec 7) to Mount Longdon.

Dismounted cavalry troops and Panhards were in support from Reserva Z. GA 3 was on call via 10th Mechanized Infantry Brigade Headquarters (Brigada de Infantería Mecanizada X or Cdo/Br I Mec X).

At first, the 7th Regiment on Wireless Ridge was relatively comfortable, shooting sheep and roasting them on old bed frames the soldiers had found nearby, according to Anglo-Argentinian Private Miguel Savage of the Mortar Platoon (under First Sergeant Mario Ricardo Alcaide) from C Company who was interviewed by the Scotsman in 2002.

Private Jorge Alberto Andreeta from B/RI Mec 7, in an interview with the Argentinian 'Clarín' newspaper in April 2012, reported that rough punishment was indeed meted out in his unit to those caught stealing provisions or hunting sheep, but admitted that his platoon got a chance to visit this sanctuary fitted with colour tv and video cassette player, "One day they took us to the hospital, we showered and they got us to watch a film, it turned out to be a horror movie.

[16] Private Guillermo Alberto Vélez from the 7th Regiment's Headquarters & Support Company maintains that he personally shot and killed 50 sheep to feed a substantial part of the Wireless Ridge defenders.

"[22] Private Carlos Alberto Chiarlini would confirm this as part of his training in an Argentine documentary (Malvinas: La Guerra Que No Vimos, 1984): I was sleeping and then I started hearing shots.