"in what cold clockwork of the stars and the nations was the hand pointing that second"
war is because of the hostilities between nations, he is nothing more than a tool of war as war can't happen without soldiers. he is being exploited by larger forces
"clockwork" highlights how the soldiers are objectified and are replaceable
time is a symbol and and the soldier is conscious of his limited time
"cold" emphasises the soldier's insignificance and implies people in power don't care about individuals