My interpretation is this- the verses are from the perspective of a soldier fighting in the war that has become disillusioned with his cause, and the chorus is from the perspective of the soldier's partner when they hear the news the solider has been killed. I believe the lines about blood refer to the partner perhaps encouraging the soldier to go to war and now regretting it, or perhaps a jibe at the Governments that are sending their armies to wars with immoral causes and therefore gaining the "blood on their hands" from the conflict.
My interpretation is this- the verses are from the perspective of a soldier fighting in the war that has become disillusioned with his cause, and the chorus is from the perspective of the soldier's partner when they hear the news the solider has been killed. I believe the lines about blood refer to the partner perhaps encouraging the soldier to go to war and now regretting it, or perhaps a jibe at the Governments that are sending their armies to wars with immoral causes and therefore gaining the "blood on their hands" from the conflict.