For a start there wouldn't be any point in invading Britain. If we were hoarding valuable natural resources, or were refusing to trade (which was making other nations considerably less well off) then that would be different, but neither of those scenarios apply.
Secondly, if we were attacked, then NATO decrees that all other member nations must come to our aid. Including America, and then whoever was invading would most certainly be screwed.
Thirdly, if say the entire world decided to invade, for whatever pointless reason, I'm sure they'd be greeted by an extremely angry and armed populace who would at the very least refuse to work, and at worst involve themselves in a long and bloody struggle against the invasion force. And considering the population of Britain (around 60 million-I know not all of that can fight, but I'm pretty sure most of them would), an invasion would completely ruin the invaders' economies , not to mention the morale of their own population at being involved in a futile war that's costing their country thousands of lives.
So yeah, rule Britannia.
Secondly, if we were attacked, then NATO decrees that all other member nations must come to our aid. Including America, and then whoever was invading would most certainly be screwed.
Thirdly, if say the entire world decided to invade, for whatever pointless reason, I'm sure they'd be greeted by an extremely angry and armed populace who would at the very least refuse to work, and at worst involve themselves in a long and bloody struggle against the invasion force. And considering the population of Britain (around 60 million-I know not all of that can fight, but I'm pretty sure most of them would), an invasion would completely ruin the invaders' economies , not to mention the morale of their own population at being involved in a futile war that's costing their country thousands of lives.
So yeah, rule Britannia.