One of my favorite Bible school songs as a child was "I'm in the Lord's Army." The lyrics went like this:
I may never march in the infantry,
Ride in the cavalry, shoot the artillery.
I may never fly o'er the enemy, but I'm in the Lord's army.
Now as an adult, I tend to cringe when I hear kids sing that song. I think it's because I now understand the unfortunate and often disastrous results that occur when Christians try to live militantly.