This second edition includes an updated introduction with a note on sources and interpretation, more than forty new documents and images, and updated further reading and website lists. The new documents offer additional material on colonialism in Africa and on specific military aspects of the war, including an excerpt on the coming of war in Germany from Stefan Zweig's autobiography; a description of the Brusilov offensive; the diary of a German deserter; an account of the Christmas truce; soldiers' poetry; a diary from the Gallipoli campaign; Jan Smuts's report on fighting in east Africa; and a report from the battle of Jutland. Several new literary sources, including a poem by Anna Akhmatova, are also included. The new images of satirical German postcards and a broadside of the Proclamation of a Provisional Government of the Irish Republic allow readers to see rare ephemera and build a more textured historical understanding of the war.