When nations are at war, the people in the military must do everything possible to perform their duty in defending their homes and country.
This human aspect of war is recognized by every member of the military, and soldiers from the other side, are treated with the respect that they have earned.
There is a very important reason why soldiers must be in uniform!
If Al-Quaeda waterboarded a captured Marine to force him to reveal his friends' position, I'd call that torture. I hope others would too.