Turkey did not actually join the triple alliance but they were fighting along side those central powers. What turkey wanted was to protect the black sea from Russia. The Soviets had only North Sea ports and one Pacific port, at Vladivostok, northwest of Japan. The Northern ports are ice-locked for part of the year, and the one on the Pacific is thousands of miles from the manufacturing centers in Eastern Europe and Western Asia, and even farther after you go around China, which is in the way. Odesa, on the Black Sea, is the only warm water port on the entire periphery of the "homeland". And so turkey thought that by joining the "all powerful" Germans, they would be able to keep total control over that port.
In the 1879, the Dual alliance (Germany and Austria) was made and then Italy joined in 1882 which made the Triple alliance.
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.
Germany joined Austria-Hungary and Italy to create the triple alliance.
Italy refused to honor its alliance with Germany and Austria-Hungary in the triple alliance and joined the allied forces, being promised part of the territory in Austria after the war.
The (Then) Kingdom of Italy. For reasons unknown the (Triple Crown) bowed out of the Triple alliance going over to the Allied powers. Germany and Austria-Hungary then joined with the Ottoman and Bulgaria to form the Central Powers.
Italy.
the triple entente
In the 1879, the Dual alliance (Germany and Austria) was made and then Italy joined in 1882 which made the Triple alliance.
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.
Germany joined Austria-Hungary and Italy to create the triple alliance.
1492
France
Germany created the Triple Alliance to prevent a two front war.
It is true that Italy secretly left the Triple Alliance and joined the Triple Entente shortly before World War I. The Triple Entente was an alliance among France, Britain and Russia after the signing of the Anglo-Russian Entente of 1907.
France
Italy refused to honor its alliance with Germany and Austria-Hungary in the triple alliance and joined the allied forces, being promised part of the territory in Austria after the war.
Bulgaria