MAP ACTIVITYMap 22.3 The American Expeditionary Force, 1918 In the last year of the war, the AEF joined the French army on the western front to respond to the final German offensive and pursue the retreating enemy until surrender.READING THE MAP: Across which rivers did the Germans advance in 1918? Where did the armistice line of November 11, 1918, lie in relation to the stabilized front of 1915–1917? Through which countries did the armistice line run?CONNECTIONS: What events paved the way for the AEF to join the combat effort in 1918? What characteristic(s) differentiated American troops from other Allied forces and helped them achieve victory?