Soldiers of any country can kill any people of any religion as they are fighting battles not embracing each other. It is possible that they could fight and kill soldiers of other Christian countries in a battle. It is not religion that gets killed in a war ....it is the enemy%u2026..Just like Iraqi armies of Saddam killing Khurds and Kuwaitis%u2026. Did they take bath in the blood of their own Muslims ???
Be wise and dont bring religion into battles and Love affairs.