The Triple Entente consisting of England, France, and Russia, fought against the Central Powers of Germany and the Austro-Hungarian Empire. A number of British allies including Canada and Australia also fought on the side of the Triple Entente. The US came into the war on the side of the Triple Entente, and the Ottoman Empire came into the war on the side of the Central Powers. As a result of the Bolshevik Revolution, Russia withdrew from the war in 1917, a year before the war ended.
It was mainly the allies - france, Great Britain and their colonies - against Germany and Austria Hungary. Later, however, Italy joined the war on the side of the allies, and Russia also joined the war.
In 1917, things were going pretty bad for the allies, until America joined the war. If they hadn't done so, who knows what would have happened.
Italy
Italy and Turkey.
U.K. and italy
Japan emerged as a world power, but Germany was weak and humiliated
poland,italy,belgium,switzerland
Germany, Ottoman Empire, Austria-Hungary, and Italy
World War 1 lasted from 1913 to 1917 and was fought mostly in Europe. World War 2 lasted from 1938 to 1945 and was fought first in Europe and later in the Pacifc after the US entered in 1941.
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World War 1 was fought against primarily Germany.
Side 1: Germany, Italy and Japan Side 2: UK, France and USA.
The War was fought from 1914 to 1918.
If by 'with' you mean fought with, then it was Italy (for the first bit), Austria-Hungary, Bulgaria, and the Ottoman Empire (what we now know as Turkey)