What Does Islam Teach In Times of War?

In case you wondered, THIS is what my religion teaches about war. Wish I could give credit to who made this - Sorry there was nothing on the post I got it from!

In case the photo ever gets removed, the rules include:

1. Don't cut a tree.
2. Don't kill a child.
3. Don't kill old people.
4. Don't destroy a temple or a church.
5. Don't destroy a building
6. Don't kill those who surrendered.
7. Don't kill those who ran away.
8. Don't kill a woman.
9. Don't kill a sick person.
10. Don't kill a monk or priest (religious person).
11. Don't disfigure the dead.
12. Don't kill an animal except for eating.
13. Be good to the prisoners and feed them.
14. Don't enforce Islam.

And you ask me how I can accept this religion? This is how.