A French air-raid on Metz. Mar. 9 (Thurs.) Mesopotamia:--The British relieving force falls back from Es Sinn. H.M.S. _Fauvette_ (armed boarding-steamer) is sunk by a mine off the east coast of England. Mar. 10 (Fri.) Germany declares war on Portugal (see Feb. 23). Mar. 11 (Sat) East Africa:--Further British successes west of Taveta and near Kilimanjaro: the Germans retreat. Mar. 12 (Sun.) Persia:--Kerind is occupied by the Russians. East Africa:--Moshi is occupied by the British. Mar. 14 (Tues.) The Caucasus:--The Russians occupy Mamakhatun (see May 31). Egypt:--The British occupy Sollum. Mar. 16 (Thurs.) The resignation of Grand Admiral von Tirpitz as Head of the German Navy is announced. He is succeeded by Admiral von Capelle. Verdun:--Heavy German attacks are repulsed. The Dutch liner _Tubantia_ is sunk by a German submarine. Mar. 17 (Fri.) A fresh German offensive is launched against Russia. Egypt:--A motor force under the Duke of Westminster rescues British prisoners from the Senussi by a successful raid. Mar. 18 (Sat.) A German success at the Hohenzollern Redoubt. The First Battle of Lake Narotch (east of Vilna) begins (see April 14). The Dutch liner _Palembang_ is sunk by a German submarine. The French destroyer _Renaudin_ is sunk by an enemy submarine in the Adriatic. Allied air-raids on Metz and Zeebrugge. Mar. 19 (Sun.) Persia:--Ispahan is captured by the Russians. An air-raid on Kent by German seaplanes (one destroyed). Mar. 20 (Mon.) Verdun:--Renewed German attacks fail. Heavy fighting near Dvinsk and Riga. An action is fought between British and German destroyers off the Belgian coast: the Germans run for Zeebrugge. A big raid by Allied aeroplanes on Zeebrugge. Mar. 22 (Wed.) Verdun:--The Germans carry Avocourt Wood. A Russian success near Dvinsk. Mar. 24 (Fri.) The _Sussex_ (passenger steamer) is torpedoed in the Channel by a German submarine. Mar. 25 (Sat.) The Russians attack the Germans near Vilna. A raid by British seaplanes, convoyed by light cruisers and destroyers, on German airship sheds in Schleswig-Holstein: the British destroyer _Medusa_ is lost by collision, and two German patrol boats are sunk in the naval action which develops. Mar. 27 (Mon.) A Conference of the Allies is held in Paris. A British success at St. Eloi: German trenches are captured (see April 7). The Russians again attack near Vilna. A German air-raid on Salonika. Mar. 28 (Tues.) Verdun:--The German attacks are renewed. Mar. 30 (Thur.) Verdun:--There is heavy fighting for Fort Douaumont; the Germans capture Malancourt. The Russian hospital ship _Portugal_ is sunk by an enemy submarine in the Black Sea. Mar. 31 (Fri.) The British G.H.Q. are moved from St. Omer to Montreuil. A Zeppelin raid on England (which is followed by four more within a week). The Zeppelin L15 is brought down at the mouth of the Thames. April 1 (Sat.) Verdun:--The Germans gain ground at Fort Vaux.