This was recommended to me by Dave Llewellyn-Dodds, one of the small community of regular commenters on Brenton Dickieson’s blog, A Pilgrim in Narnia. It is an excellent and well written analysis of how Tolkien’s experiences just prior to, and during, the First World War, fed into his creative process. It does not try to claim that there is any direct allegory (as any serious fan of Tolkien knows, he hated allegory) but rather explores how his vision of Middle-Earth was deepened and expanded by his experiences of suffering and loss, and his encounters with new types of people. It definitely offers a new perspective on Tolkien’s legendarium, and will be an excellent complement to the film that is coming out soon, which also explores that period of his life.
This book will also make you realize what a senseless waste of lives the First World War was. Garth notes that A A Milne became a signaller because the chances of survival were higher. I can’t say I blame him. A similar (but less baldly stated) instinct underlay Tolkien’s choice of signalling as his contribution to the war effort. It’s chilling to think that Winnie-the-Pooh and The Lord of the Rings might not have existed if they had been killed. I also wonder what else Saki (H H Munro) and Wilfred Owen might have written, had they survived WW1. And what other geniuses were lost in that slaughter. Certainly Tolkien's friends Rob Q Gilson and Geoffrey Bache Smith.