Enemy At The Gates, William Craig. About the battle for Stalingrad. It's not new, originally published in 1973, which meant he was able to interview several combatants, from both sides, as they were still alive. I found it great to read - yes, it can be gruesome and the conditions don't bear thinking about, but there are several times which are either funny or give you hope. I particularly liked the incident where a Russian major gave the artillery the coordinates of the quarter master when he had his vodka ration cut off!
