Its the Falklands again

Apparently trouble is brewing around the Falklands again. The Argentines want to restrict all flights into the Falklands to Argentinian carriers. I know its probably just the Argies being beligerant. Britain is already sending a diplomat to negotiate but it just made me curious as to what the RAF and the other services currently field in that area of the world. I know there are some Tornadoes and a VC10, I think, amongst others. Just what does the Argentine military have left that could be put up against the defenses on the islands or is any threat from them just pointless posturing. If they did manage to put forces ashore does Britain still have the ability to storm of down to the South Atlantic and take the islands back or would do we have to ask our colonial friends for help.