Curiousone
Banned
Maybe you need a military government that was militarily competent.
Have it quietly buy more aircraft and exocets in advance.
Plan proper logistics for the occupying troops.
Have Belgrano in Port Stantley early on
Land figthers and put aa missiles around the airfield
Just have the Junta not lose their nerve. They were planning to do the invasion several months later, flipped out and jumped the gun when a protest happened. Had they even waited a month they could have done those things (including lengthening the airfield as others suggested). Winter would have set in before the U.K could have achieved it's objectives, the world would have been pressing hard for negotiations.