I wouldn’t call the Falkland Islands War 2: Electric Boogaloo “WW3”. More like a police action, to be honest. The Argentine Navy and Air Force these days is frankly laughable in comparison to their military strength before the first FI war, let alone the strength of the RN and RAF today.
At the moment the patrol is a single River class whose largest armament is a 30mm cannon. In the past there tended to be either a frigate or a destroyer in the area, but while the Argentine navy is much diminished they can probably overpower or outmanoeuvre that defence.