Lyric discussion by goldfish 

No-one seems to have mentioned the relevence of the worms as a metaphor of Pink's mental breakdown in the film (As in The Trial, and in Hey You: "and the worms ate into his brain"). Clearly at this point he sees his breakdown happening, and is at the point where he is powerless to resist.

"Sitting in a bunker here behind the Wall, waiting for the worms to come"

This just means he's waiting behind the metaphorical and alienating wall he has around him waiting for the final decay of his sanity, unable to stop it now. The war is an obvious theme, but only there to give the deeper level some sort of context or justification. As is true throughout the whole album. If you've never though of it like that - listen again!

@goldfish\r\nYours is the closest meaning of the lyrics. The "worms" are what it feels like (worms crawling around inside your brain) when a flood of natural chemicals are suddenly released into your brain from for example... "shell shock" or other trauma. The "metaphorical wall" goes up shielding you from being able to feel emotions or turning the emotion volume knob all the way down to level 1, accept/recognize emotions from others, and even burying memories deep inside... hidden from consciousness.

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