Is there anything a 21st century military strategist can usefully learn from the tactics of Hannibal or the age of pike, sword and musket? In this edition of Black's History Week, Professor Jeremy Black offers The Critic's deputy editor, Graham Stewart, a crash course in the history of war.

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--Image: A painting depicting The British Army overpowering the Colonialist position during the Battle of Bunker Hill at the beginning of the Revolutionary War on June 17, 1775 outside Boston, Massachusetts. (Illustration by Ed Vebell/Getty Images)Music: Radetzky March by Human Symphony Orchestra (premiumbeat.com)