The Russian government collapsed in March with the February Revolutionand the October Revolution followed by a further military defeat brought the Russians to terms with the Central Powers via the Treaty of Brest-Litovskwhich granted the Germans a significant victory.
The German advance into France was halted at the Battle of the Marne and by the end ofthe Western Front settled into a battle of attritionmarked by a long series of trench lines that changed little until Unresolved rivalries at the end of the conflict contributed to the start of the Second World War about twenty years later.
Romania joined the Allied Powers in The Triple Alliance was primarily defensive in nature, allowing Italy to stay out of the war inwhile many of the terms of both agreements were informal and contradicted by others; for example, Italy renewed the Triple Alliance in but secretly agreed with France to remain neutral if it was attacked by Germany.
On 4 Novemberthe Austro-Hungarian empire agreed to the Armistice of Villa Giustiand Germany, which had its own trouble with revolutionariesagreed to an armistice on 11 Novemberending the war in victory for the Allied Powers.
This effort failed, however, as weakened successor states, renewed nationalism, economic depression, and feelings of humiliation particularly in Germany eventually contributed to the start of World War II.
After the sinking of seven US merchant ships by German submarines, and the revelation that the Germans were trying to incite Mexico to make war on the United States, the US declared war on Germany on 6 April The League of Nations was formed with the aim of preventing any repetition of such a conflict.
Between andthe Balkans had been destabilised by the combination of a weakened Ottoman Empire, the — Balkan Wars and competing Russian and Austro-Hungarian objectives.
It was one of the deadliest conflicts in history and precipitated major political changes, including the Revolutions of —in many of the nations involved.World War I (often abbreviated as WWI or WW1), also known as the First World War or the Great War, was a global war originating in Europe that lasted from 28 July to 11 November Contemporaneously described as the "war to end all wars", more than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history.Download