Just to consider, in '82 the Falklands were defended by a garrison of just 70 Royal Marines (double the usual number because it was the week that the units changed over) and a local militia. Now there are around 1200 army personnel, a Typhoon squadron, a frigate and probably a submarine lurking about, meanwhile the Argentinian military is less capable than it was 30 years ago. If the Islands do change sovereignty, it will be by negotiation not force.