5 August

1914

 * - Liège: Fort Fléron silenced.
 * No - SS Königin Luise, German mine-layer, destroyed. SMS Goeben and SMS Breslau reach Messina.
 * - Austria-Hungary declares war on Russia.
 * Great Britain mobilises.
 * Lord Kitchener is made War Secretary.

1915

 * - Heavy fighting in the Vosges and at Hill 213 (Argonne).
 * - Capture of Ivangorod by Austrians. Germans enter Warsaw.
 * - Italian airship captured at Pola. Progress on the Carso by Italians.
 * General Sarrail succeeds General Gouraud as Commander in Chief in Near East.
 * - Russians capture Turkish positions near Olti and Sarikamish (Transcaucasia) and repel counter-attacks.
 * - Strike in Belgian coal district.
 * Germans fire on strikers.
 * Russian Ministry of Munitions proposed.
 * Duma votes 35 million roubles for refugees.