She was the first vessel to be named after Rear Admiral Martín Guerrico who fought in the 19th century Paraguayan War.

She was based at Mar del Plata and conducts fishery patrol duties in the Argentine exclusive economic zone where she has captured several trawlers.

[5][6] According to reports in November 2012 the Drummond class "hardly sail[ed] because of lack of resources for operational expenses".

[8] Guerrico was built in 1977 in France for the South African Navy to be named SAS Transvaal but was embargoed at the last minute by United Nations Security Council Resolution 418.

In 1982 she served in the Falklands War most notably in the Invasion of South Georgia where she was damaged by Royal Marines weapon fire which led to her spending three days in dry dock for repairs[9] before rejoining the fleet as part of Task Group 79.4, alongside her sister ships operating to the north of the islands.