I saw a tweet about this guy when I was out of town last week and I saved it.  I just read it again and I get the same shivers now that I did when I first read it.

I was fighting so that you wouldn’t have to deal with or die in another 9/11. I was fighting so that you and America would never have [to]know another war on our soil.

He was killed in a firefight recently.  In a letter to his family, he said:

I died happy. Maybe not peacefully, but happy, and with purpose. That’s all I could have ever asked for.