Which country was NOT a member of the Triple Entente?

Italy was not a member of the Triple Entente, which consisted of Russia, Great Britain, and France. The Triple Entente was formed in the early 20th century primarily as a response to the growing power of Germany and the alliance system that emerged in Europe.

While Italy was involved in World War I, it initially aligned with the Central Powers (Germany and Austria-Hungary) but later switched sides to join the Allies in 1915. This shift reflects Italy's complex geopolitical interests, which were not aligned with the Entente powers until later in the war. The other three countries—Russia, Great Britain, and France—maintained a cooperative diplomatic relationship against the backdrop of rising tensions leading up to the war. Understanding these alliances is crucial for grasping the intricate dynamics of World War I.