During the Falklands Islands War, The Liberal government of the day under Pierre Elliot Trudeau, recalled it's Canadian ambassador Dwight Wilder Fullford(Department of External Affairs)from Buenos Aires in Argentina during this political/military crisis.
Here's a few more links on this topic.
A few books I'd recommend on this topic as well.
(1)Razor's Edge The Unofficial History of the Falklands War, by author Hugh Bicheno.
(2) Argentine Fight For The Falklands/Las Isla Malvinas by author Martin Middlebrook.