Italy launches an offensive in hopes of capturing Trieste from the Austrians, in four battles along the Isonzo River the Italians fail to make headway and suffer 250,000 casualties.

5 Aug.

Warsaw is captured by Austrian and German armies.

30 Aug.

In continued fighting along the eastern front, the Russian fortress at Brest Litovsk is taken by the Germans.

5 Sept.

After watching his army suffer a series of humiliating defeats, Czar Nicholas II takes personal command of the Russian army.

22 Sept.

Allied troops begin an offensive in Artois and Champagne, in northern France. The British capture Loos, a mining town, but suffer 60,000 casualties. The French sustain 145,000 killed or wounded.

6 Oct.

Germany and Austria invade Serbia, driving the Serbian army across Albania and onto the island of Corfu.

14 Oct.

Bulgaria joins the war on the side of the Central Powers when it declares war on Serbia. In return the Central Powers promise Bulgaria...