You do understand that UK army is shit compared to France plus Germany?
Yah, that's what the corrupt warmongering regime in Argentina told their people when they decided to invade the Falklands.
How's that working for the Peronistas?
How's that working for all the dead sailors at the bottom of the sea rotting in the wrecked Belgrano?
France won't, and German can't, do anything about Spain's hilarious request to annex Gibraltar, any more than Morocco can take the islands off its coast from Spain.
You can accept history, or you can deal with this:
https://en.wikipedia.org/wiki/Royal_Navy_Submarine_Service#Active_submarines
Spain's armed forces are great at pushing around Africans. Beating Her Majesty's armed forces and reversing 400 years of UK sovereignty? Not so much....