What country of Europe would trade alliances at the start of World War I?

It is commonly said that Italy changed sides at the start of World War 1. In 1882 the Italians joined the Triple Alliance with Austria-Hungary and Germany. However, Italy had made a secret pact with France in 1902, nullifying their alliance with Germany and Austria-Hungary. Italy felt that at the start of World War 1, Austria-Hungary had been the aggressor. The Triple Alliance was defensive in nature, and so, the Italians used that as an excuse to delay committing troops to the conflict. The Austro-Hungarians offered Italy the French colony of Tunisia in return for Italian neutrality. The French and British made a counter off, promising the Italians the province of South Tyrol, and land on the Dalmatian coastline. This swayed Italy's feeling in the favor of France and Britain, and they then joined the Triple Entente.