Gates of Fire
Lulu: 'I recommend Gates of Fire, it comes off the Marine Commandants Reading List, it's on there perennially. It is about the Battle of Thermopylae, it's the 300 Spartans, but it's the whole backstory. And if you get into it's about leadership, it's about courage, it's about creativity, and it's really well-written, so that's one that I recommend a lot.'