i figure for the most part its the same in the US as in the UK.

they either use what was issued or maybe spring for a ka-bar or something under a hundred bucks they sell locally or from brigade quartermaster.

my brother is in the navy.one guy he's in with was telling him he was a knife expert but had never seen or heard of scrapyard or ranger which i gave my brother one of each.i said if he hasnt heard of those two he isnt a knife expert.

most arent into knives honestly.