In the closing months of the First World War, Britain, America, France and Japan sent 180,000 soldiers to revolutionary Russia, in a doomed attempt to unseat the Bolsheviks. Entangled in what they termed a ‘comic opera’ conflict, they crisscrossed the shattered empire in sleds, trains and paddle-steamers, bivouacked in log cabins and felt yurts, torpedoed warships from speedboats, improvised the world’s first air-dropped chemical weapons, and organised several coups and at least one assassination. Cheered on by Churchill, they also turned a blind eye to their Russian allies’ many atrocities. Two years later, as the Red Army swept the board, the West evacuated, leaving Russia more blood-stained and suspicious than ever. A Nasty Little War brings this forgotten misadventure vividly to life.