Declarations Of War timeline

Austria-Hungary Declares War on Serbia

When the full text of the Austria's ultimatum to Serbia was published, public opinion was incensed at the severity of the demand. A feverish week... Read more

Germany Declares War on France

On the afternoon of this day in 1914, two days after declaring war on Russia, Germany declares war on France, moving ahead with a long-held... Read more

Liberia Declares War on Germany

At the outbreak of World War I, President Howard attempted to maintain the country's neutrality, though he tended to support the Allies, whose... Read more

Great, Britain, France and Russia Declare War on Germany, and Germany Declares War on Belgium

Germany, on August 3, while refusing to promise not to trample down Belgium, would agree not to attack France by sea if Britain should remain... Read more

Montenegro Declares War on Austria-Hungary

Montenegrin Army, 40,000 General Yukovitch King Nicholas Austrian Army, 60,000 General Ermolli General Koevess MONTENEGRO, the poorest... Read more

Austria-Hungary Declares War on Russia

Opening hostilities Confusion among the Central Powers The strategy of the Central Powers suffered from miscommunication. Germany had... Read more

Serbia Declares War on Germany

Setting the stage On July 23, Austria-Hungary demanded Serbia comply with its March 1909 declaration to the Great Powers to maintain good... Read more

Montenegro Declares War on Germany

Under Nicholas I, the Principality of Montenegro vastly advanced and enlarged several times in the Montenegro-Turkish Wars and achieved recognition... Read more

Great Britian and France Declare War on Austria-Hungary

A circular sent to US consuls throughout Germany giving general instructions with regard to the treatment of Americans "AMERICAN EMBASSY,... Read more

Japan Declares War on Germany

Japanese Army, 22,980 Lieut. General Kamio Major General Horiuchi General Yamada General Johogi Vice-Admiral Kamimura English Force,... Read more

Japan Declares War on Austria-Hungary

Japan Declares War A Time-limit of nine days had been fixed by Japan for Germany's acceptance of her ultimatum, but Germany scornfully... Read more

Austria-Hungary Declares War on Belgium

At the outbreak of the First World War, the German army (consisting in the West of Seven Field Armies) executed a modified version of the... Read more

Russia Declares War on Turkey

Because of the help given by Turkey to the German attack of Russia, Russia declared war on Turkey. Read more

Serbia Declares War on Turkey

Theatre definitions: Western Front comprises the Franco-German-Belgian front and any military action in Great Britain, Switzerland, Scandinavia... Read more

France Declares War on Turkey

Italy had been allied with the German and Austro-Hungarian Empires since 1882 as part of the Triple Alliance. However, the nation had its own... Read more

Great Britain Declares War on Turkey

In Egypt there was some show of hatred for England among the Nomads of the desert, but no attempt was made to instigate a general uprising. Arabia,... Read more

Italy Declares War on Austria-Hungary

Italian Army, 700,000 Gen. Luigi Cadorna, Commander Gen. Brusati Gen. Pecori-Giraldi Duke of Aosta King Victor Emmanuel Admiral Patris... Read more

San Marino Declares War on Austria-Hungary

While Italy declared war on Austria-Hungary on 23 May 1915, San Marino remained neutral. Italy, suspecting that San Marino could harbour Austrian... Read more

Italy Declares War on Turkey

Italy had been allied with the German and Austro-Hungarian Empires since 1882 as part of the Triple Alliance. However, the nation had its own... Read more

Bulgaria Declares War on Serbia

Bulgaria threw off the mask of neutrality on October 11, 1915, declaring war against Serbia on the pretext that the Serbians had crossed the... Read more

Montenegro Declares War on Bulgaria

Under Nicholas I, the Principality of Montenegro vastly advanced and enlarged several times in the Montenegro-Turkish Wars and achieved recognition... Read more

Great Britian Declares War on Bulgaria

In the years following the achievement of complete independence Bulgaria became increasingly militarised: Dillon in 1920 called Bulgaria "the... Read more

France Declares War on Bulgaria

In the aftermath of the Balkan Wars, Bulgarian opinion turned against Russia and the western powers, whom the Bulgarians felt had done nothing to... Read more

Russia Declares War on Bulgaria

In the aftermath of the Balkan Wars, Bulgarian opinion turned against Russia and the western powers, whom the Bulgarians felt had done nothing to... Read more

Italy Declares War on Bulgaria

In the aftermath of the Balkan Wars, Bulgarian opinion turned against Russia and the western powers, whom the Bulgarians felt had done nothing to... Read more