12 July

Events preceding British Declaration of War

 * Demonstrations in Ulster suggesting Civil War.

1915

 * - Crown Prince checked in Argonne after vigorous offensive. German advance round Souchez and capture cemetery. German attack in the "Labyrinth" (north of Arras) repulsed.
 * - Enemy offensive on the Bobr and Narev fronts (north-east of Warsaw).
 * - Turkish trenches before Achi Baba captured. Italian air-raid on Pola.
 * No - Engagements reported between British-Belgian force and Germans on north Rhodesian frontier.
 * - State control of coal industry announced in Germany. South Wales miners conference rejects Government proposals.

1916

 * - British gain Mametz Wood and make progress in Trones Wood. Successful raids in Loos salient.
 * Germans attack strongly at Verdun; gain some ground at Chapelle St. Fine, at intersection of Fleury-Vaux roads.
 * - Furious fighting continues on the Stokhod, with no decisive results.
 * - An Austrian attack on the Adige driven back.
 * - Russians under General Yudenich advance west of Erzerum on the Erzingan road and recapture Mamakhatun.

1917

 * - British air raid into Belgium.
 * - Russian progress towards Dolina (Galicia). General Kornilov crosses the Lomnica river.
 * - Announced that Turks have been routed by King of Hejaz in northern Arabia, 700 killed, 600 prisoners.
 * - Mesopotamia Debate: Mr. A. Chamberlain, Secretary of State for India, resigns. Chinese Republicans enter Pekin; Tuan Chi Jui, P.M.; Fen Kwo Chang, President.

1918

 * - Announcement of Allied force on Murman coast. Czecho-Slovaks capture Kazan (on River Volga); Czecho-Slovaks control Siberian Railway east of Penza.
 * - French advance on both sides of River Devoli (southern Albania); Austrians retreat.
 * No - Japanese battleship Kawachi blown up and sunk in Tokuyama Bay, 500 casualties.
 * - Count Hertling in Reichstag on Belgium as a pawn. Prussian Upper House expels Prince Lichnowsky.
 * Mr. Huges (Australian Premier) re Pacific islands.
 * Denaturalisation Bill passes first and second reading in House of Commons.