| Quote #1
The unexplained glory flies above them. (9)
"Glory" here refers to a flag. It is unexplained in this poem because it makes no sense to fight for something as flimsy as a flapping piece of fabric. Rather, it makes no sense to kill people because they happen to be from a different country and fight under a different flag.
| Quote #2
Great is the battle-god, great, and his kingdom
The speaker seems patriotic, but only when it comes to the battle-god ("great […] great"). He speaks highly of this god of death, and seems only concerned with satisfying him, rather than worrying about all those dead bodies.
| Quote #3
Swift blazing flag of the regiment,
Red and gold on a flag? The red makes us think of all the blood on the field of battle, and the gold reminds us of that yellow trench from earlier. A flag equals patriotism, red and gold equal death, therefore patriotism equals death. Okay, so that's maybe a bit of a stretch. But we think it's there in the poem. What do you think?