Since we're on the topic of Marines, I'll add my admiration of the Corps. All of the services produce some great leaders, but in my observation the quality of officer developed in the Marine Corps is unsurpassed. One good Marine Col. (and Lt. Col.) after another. There are practically no bad Senior Marine Officers. I work well with their Senior Enlisted too.
But I disagree Hawtie, that it's the "Men's" department of the Navy. I disagree for several reasons, but among them is the badass women that the Marines cultivate. There are only two female Marines on our compound. I box with one of them, a captain, several times a week. She is a bad-ass boxer. She's tall and thin, but punches like a ton of bricks and her form and footwork are solid. She was apparently offered a pro-fight at one point, but amazingly (in my opinion) the Marines didn't approve the fight.
The other female is a 5' 1" Sergeant who teaches a martial arts class. She throws 200 lb. dudes around like rag dolls.