The thing is, American culture is very narcissist. So the cliches you all come out with try to beef you up, trying to lower others in the invisible hierarchy, and omitting the correct detail that makes you look shit. Here's a link that adds a little detail -
Why is narcissism a particularly American trait? Americans focus more on themselves than others and it's not Donald Trump's fault.
www.psychologytoday.com
I don't have a clue where UK soldiers are based, it's something that has never ever bothered or effected me. The thing is in the UK, we get up in a morning, work, leisure, interact with people, go to the pub etc.. We don't constantly feel the need or panic about arming up against home invaders and machete wielding manics, we don't feel the need to brag where army personal are.
Why don't you brag about Treaty of Ghent? The Brits don't, you obviously won't. But, the Brits are not narcissists.
So when you all start to lose debates, the bragging comes out, and when you read the link, that's what makes you *********
*whoop whoop slap slap * (and all that shite)