But would you be helping people though?

Can you pick and choose where you are deployed: no. You'll be an instrument of policy. An expensively trained and skilled instrument of policy. They're not going to have you hugging Panda's in a white UN jeep, they're going to have you on the ground helping influence a ruckus in some war torn shit hole, so they can manipulate the geopolitics of the region. Policy is not benign. Look at some of the suspicions around 911, look at some of the suspicions around Al Qaeda, look at the lack of WMD, look at how Gaddafi suddenly went from friend to foe, look how 10% world trade goes through Egypt (Suez). There is a pattern, and it's called: power and money.

I'm not being judgemental or having a go, I'm just saying think about it before you come back with your leg blown off, full of resentment about how they lied to you about what you were doing.

PS