[Sephiroth]

Originally Posted by Mr K

https://en.m.wikipedia.org/wiki/Even..._Falklands_War

The President of France, François Mitterrand, gave full support to the UK in the Falklands war. Sir John Nott, the British Secretary of State for Defence during the conflict, has acknowledged in his memoirs that "in so many ways Mitterrand and the French were our greatest allies".

https://www.warhistoryonline.com/war....html?chrome=1

The article acknowledges the assistance received from Mitterand but also:

A BBC investigation has uncovered evidence that, even though the embargo was in place, a team from France worked with the Argentine troops in the Falklands during the war. The team allegedly tested the missile systems to ensure they would fire.

Three of the missiles failed and the team repaired the issue which allowed the missiles to be used against British troops.

Hence perfidious.