What major development resulted from the 1982 conflict in the Falklands?

The major development that resulted from the 1982 conflict in the Falklands was the end of Argentine occupation. This conflict, also known as the Falklands War, was fought between Argentina and the United Kingdom over the disputed Falkland Islands, South Georgia, and South Sandwich Islands. Following a series of military engagements, British forces successfully retook the islands in June 1982, leading to the end of the brief Argentine occupation.

This victory reinstated British control over the islands and affirmed the UK's sovereignty claim, which has remained a significant political issue between the two countries ever since. The aftermath of the conflict not only influenced British foreign policy but also had lasting implications for Argentina, leading to political changes and shifts in national sentiment regarding military governance.

While other options pertain to geopolitical consequences or military movements, they do not accurately capture the direct outcome of the war itself in terms of territorial control and administration.