"Like something from Tolstoy, isn't it?"
(1828–1910) was a nineteenth century Russian writer and thinker. He is now best known for his novels War and Peace
and Anna Karenina,
although during his lifetime he was famous as a political and religious thinker, founding a kind of Christian anarchism called Tolstoyanism, which greatly influenced Gandhi.
War and Peace is epic in scope, and includes a number of panoramic battle scenes describing famous battles from the Napoleonic Wars in Russia and Eastern Europe. It is this sort of scene that Henry and Julian are thinking of here.