British Marines were always some of my Favorite blokes to go bar hopping with overseas. Marines stick together no matter where they are or when they have served.
Britsh Marines are the best. Their training and levels of fitness are obscene, always good to have around when things get wired. I always wish I'd joined the marines instead of the army when I was a lad, but I thought I wouldn't be able to slog it. Oh well.

Anyway, to answer the original question... JOIN THE ARMY/MARINES/NAVY! It needs you, but more importantly YOU need it.