Preface to the revised edition -- The sinking of the Lusitania -- Storm clouds over Europe -- The opening clash -- The great neutral -- Deadlock : 1915 -- Attrition : 1916 -- An American crusade -- Crisis : 1917 -- Mobilizing a nation -- The battle of the Atlantic -- Convoy to France -- Over there -- The new storm -- Devil dogs of Belleau Wood -- Turning the tide -- Knights of the air -- Into the Argonne -- The eleventh hour -- The road home -- Reckoning -- Weapons and tactics -- The war to end war.