Weesam
2/20/2015
This is about a war fought against aliens, which serves as an allegory for the Vietnam war. Haldeman being a Vietnam vet. However, at its heart it is about an unwilling soldier in an endless war, who comes to realise he can't ever go home again as society has moved on without him and he no longer fits into the world he left behind.
There is a reason this is a classic. If you haven't read it yet, what are you waiting for?