German Empire, the Austro-Hungarian Empire, the Ottoman Empire, and the Kingdom of Bulgaria.
Italy chose to remain neutral (neutrality - policy of supporting neither side in a war). Britain makes decision to support its ally France because of Germany war plans. General Alfred von Schlieffen planned to attack France. His plan was to avoid a two-front war against France (west) and Russia (east). He thought that Russia's army would be slow to mobilize. Under his plan, Germany first defeated France and then fought Russia. To ensure victory (west) his plan required German armies to march Belgium and swing south behind French lines. August 3 Germany invaded Belgium. Britain declared war on Germany, Britain and other European powers signed a treaty ensuring Belgium's neutrality.
Battle of Marne pushed back German offensive and destroyed Germany's hopes for quick victory on the Western Front.Warring armies in the Western Front burrowed into vast system of trenches, stretching from Swiss frontier to English Channel.
German forces overwhelm the French at Verdun. French defenders held firm, but 11-month struggle cost more than half-million causalities on both sides.
Allied offensive at Somme River was costly. In single grisly day, 60,000 British soldiers were killed or wounded, in five-month battle, one million soldiers were killed without either side winning an advantage.
At battle of Tannenberg, Russians suffered one of the worst defeats of the wat causing them to retreat. After Tannenberg, armies in the east fought on Russian soil. Russia was the least industrialized of the great powers and was poorly equipped to fight a modern war. Troops sometimes lacked even rifles. Still, Russian commanders continued to throw masses of peasant soldiers into combat.
Austrians and Germans launched major offensive against the Italian position at Caporetto. The Italians retreated in disarray. Later, British and French forces helped stop Central Power's advance into Italy. Still Caporetto proved as disastrous for Italy as Tannenberg had been for Russia.
The British sent Colonel T. E. Lawrence (Lawrence of Arabia) to support Arab revolt. Lawrence led guerilla raids against Turks, dynamiting bridges and supply trains. Ottoman empire lost a great deal of territories to the Arabs, including the key city of Baghdad.
Treaty of Brest-Litovsk
Lenin signed the treaty with Germnythetreaty ended Russian participation in WW 1
president, insisted that Americans as citizens of a neutral country, had a right to safe travel on the seas
French leader, anti-German policy, goal was to weaken Germany do that it could never again threaten France
Treaty of Versailles
The treaty said that Germany will take full responsability of the war and had to pay the reparations.
is the spread of a disease across the entire country, continent or in this case the whole world