Sometimes that genre can turn bad on you, but sometimes, you can get pleasantly surprised.
The Heritage Trilogy is good - it has a US vs UN war set 40 years from now in the first two books (the third book is set 60 years off). It features Marines on Mars, Marines on the Moon, finds of alien technology, and the mendacity of a French dominated UN.
For mindless crap, I recommend Matt Reilly's novels. Ice Station and Area 7 star a Marine Force Recon unit. It's BS all the way through--no women in Farce Recon, and they don't have that kind of equipment--but they have loads of action, conspiracies galore, and , and Reilly (an Australian) captures the Marine Corps ethos--improvise, adapt, and overcome--better than anyone else.