Why did the British form alliances in World War 1?

The British formed alliances in World War I primarily to counterbalance the growing power of Germany and its allies, which threatened European stability. The formation of alliances, such as the Triple Entente with France and Russia, aimed to create a united front against potential aggression. These alliances were also intended to deter conflict through collective security, ensuring that an attack on one member would be met with a response from others. Ultimately, these alliances played a crucial role in the escalation of the war following the assassination of Archduke Franz Ferdinand.