The British first of all made the first tank which was pretty big at that time.
The allies were a combined force of UK, Russia, USA, France, and Serbia.
Russia later left the war due to the Russian Revolution in which there Czar was killed and the government was changed into what is now known USSR.
The USA entered WWI due to submarine attacks on American Vessels by the Germans and a note sent to Japan and Mexico from Germany that asked them to join the war and attack the US.
The UK entered due to Germany violating a treaty that was meant to keep Belgium Neutral between the UK and Germany but in order for Germany to succeed in its plan to take down France it had to go through Belgium. Therefore the UK got involved due to this violation of the treaty.
As for Allied Military power, the Allys had more men and were attacking the Germans from a western front and a eastern front. The western front was combined forces of the French and British and later the Americans. In the eastern front was Russia and Serbia but due to the Russian Revolution, Russia left the war near the end but it prolonged the war because all the men from the Eastern front came to the Western Front.
The Germans had better weapons and military Material but due to the allies mass troops they lost.
Also when the Americans entered the war they drafted about 3 million people.
Italy joined the allies in 1915. Im %100 sure.
UK,russia,france,italy and us
The good ole USA
ItalyDuring World War I, however, Italy did not go to war immediately with her allies but stayed neutral. In 1915, she joined the Entente powers and declared war on Austria-Hungary, and later Germany in the subsequent year. The Dual Alliance persisted throughout the war and ended with their defeats in 1918.
Germany's allies in the "Central Powers" were:Austria-HungaryOttoman Empire (joined the Central Powers in 1914) (later on became known as Turkey)Bulgaria (joined the Central Powers in 1915)
The United States joined the Allies in December 1941 .. HELP TO FIND THE OTHER COUNTRY
The Triple Alliance between Germany, Austria-Hungry and Italy was a secret alliance formed in May 1882. While no one joined the alliance in 1915, Italy did leave the alliance and join the allies.
Italy
The good ole USA
Italy
ItalyDuring World War I, however, Italy did not go to war immediately with her allies but stayed neutral. In 1915, she joined the Entente powers and declared war on Austria-Hungary, and later Germany in the subsequent year. The Dual Alliance persisted throughout the war and ended with their defeats in 1918.
Germany's allies in the "Central Powers" were:Austria-HungaryOttoman Empire (joined the Central Powers in 1914) (later on became known as Turkey)Bulgaria (joined the Central Powers in 1915)
Japan
Mexico
Italy dropped out of Triple Alliance to fight against the Austria-Hungary in May of 1915, and Germany in 1916.
The United States joined the Allies in December 1941 .. HELP TO FIND THE OTHER COUNTRY
The Triple Alliance between Germany, Austria-Hungry and Italy was a secret alliance formed in May 1882. While no one joined the alliance in 1915, Italy did leave the alliance and join the allies.
Italy
Soviet Union