The streets made him, the Army changed him, and life forced him back into a world he left behind and taught him how to let go of the past.

The logline needs to tell who the main character is, what his/her goal is, and what obstacles are in his/her path. Good Luck!

Sounds interesting but you need to develop on
1. Character (one word description)
2.Goal
3.whats restricting this goal

Yep. It's a tagline, not a logline. It doesn't tell me anything about the story.