The Siege Of Krishnapur (1973)
J.G. Farrell's first "standard" Booker winner is the second part in his "Empire" trilogy, this time jumping back to the Indian Rebellion of 1857 for a by turns hilarious and meditative look at a pivotal (if not decisive) moment in British Colonial history, told via a graphic evocation of a four month siege of a British garrison by the uprising sepoys.
Troubles (1970, the “Lost Booker”)
It's 1919 and Major Brendan Archer, soon after returning from the Trenches, heads over to Ireland to meet a woman he seems to be engaged to, despite not being entirely sure whether he is or not.