We do have a Navy capable of defending them. Just for instance: we have SSNs capable of targeting any unit in the Argentinian fleet just by listening to their prop noise.
But when we - as a first resort mind you - try to build diplomatic consensus about the settled sovereignty of the Falklands: the idea being to head off a war rather than nuke Argentina down to the bedrock - your Muslim-in-Chief instantly washes his hands of the matter.
That tit in the White House just made war more likely.
I agree with you about the a$$hole in the white house...that idiot has done more damage to the relations this country has with it’s allies than even carter did...but, if you have worldwide colonies, you need a world class deep water navy....britain used to have just that, but no longer...perhaps a change of leadership is needed over there as much as it is needed over here...