I'm not sure they've anything to be smug about, to be honest. It's all about breeding, ain't it. And they don't.
No, fighting wars is the easy bit; returning home and living in peace is the tricky part. Which is how the Golden Generation ended up raising their own subsequent generations of homos, harridans and and hippies and things have only continued to get steadily worse ever since.
Your mum's a hippy homo harridan.
When I was young and full of rage
I hated Tottenham to the core
But now I've reached a gentler age
I hate the fùckers even more.