Submarine campaign of Germans results in the sinking of 134 vessels March 3. British advance on Bapaume. Mexico denies having received an offer from Germany suggesting an alliance. Russian Czar suspends sittings of the Duma. Bagdad captured by British forces under Gen. Maude.
China breaks with Germany.
Czar Nicholas abdicates. Prince Lvoff heads new cabinet. Bapaume falls to British. Roye and Lassigny occupied by French. Peronne, Chaulnes, Nesle and Noyon evacuated by Germans, who retire on an 85-mile front.