In November every year, on Remembrance Sunday, representatives of the whole nation parade past the Cenotaph in Whitehall, London. The last section to pass is always a group of London Transport staff. For decades they marched in the company of a very special vehicle: a bright red open-topped double-decker London bus. This was B-type bus number B43. Written using detailed study of the first hand accounts preserved in official war diaries and reports, and other extensive research, this is the complete story of B43, Ole Bill, and other London buses that went to war in Northern France in 1914.