Oct. 4—Russian ultimatum to Bulgaria.
Oct. 5—Allied forces land at Saloniki, at the invitation of the Greek Government.
Oct. 5—German Government regrets and disavows sinking of "Arabic" and is prepared to pay indemnities.
Oct. 6-Dec. 2—Austro-German-Bulgarian conquest of Serbia. Fall of Nish (Nov. 5), of Prizrend (Nov. 30), of Monastir (Dec. 2).
Oct. 14—Great Britain declared war against Bulgaria.
Nov. 10—Russian forces advance on Teheran as a result of pro-German activities in Persia.
Dec. 1—British under Gen. Townshend forced to retreat from Ctesiphon to Kut-el-Amara.
Dec. 4—United States Government demands recall of Capt. Karl Boy-Ed, German naval attache, and Capt. Franz von Papen, military attache.
Dec. 6—Germans captured Ipek (Montenegro).
Dec. 13—British defeat Arabs on western frontier of Egypt.