What were the two names of the two major Alliances competing for power in Europe

The Triple Entente (Britain, France and Russia) and the Triple Alliance (Germany, Austria-Hungary and Italy)

The two major alliances competing for power were the Triple Entente and the Triple Alliance. The Triple Entente alliance is formed by the countries of Britain, France, and Russia; while, Austria-Hungary, Germany, and Italy are the countries that form the Triple Alliance. These six countries were the major powers of Europe and they formed series of alliances that caused the two warring sides of World War One.

Generally these countries were forced to fight a war with each other without exactly knowing why. Panic and conspiracies were built around these alliances where one country thought that the other is attacking so they had to secure each of their specific sovereignties.