The monoplane called Pucara, was used  by what?
Raid on Pebble Island:  The site was being used as a forward operating base for T-34 Mentor and Pucara aircraft by the Argentine Air Force; British Special Air Service (SAS) operatives were tasked with destroying the aircraft on the ground, in an operation that echoed back to some of the unit's first missions during the North African Campaign of World War II. FMA IA 58 Pucará:  It is a low-wing twin-turboprop all-metal monoplane with retractable landing gear, capable of operating from unprepared strips when operationally required.
Argentine Air Force