By 1914, trouble was on the rise in Europe. Many countries feared invasion from the other. For example, Germany was becoming increasingly powerful, and the British saw this as a threat to the British Empire. The countries formed alliances to protect themselves, but this divided them into two groups. Germany and Austria-Hungary had been allies since 1879. They had then formed the Triple Alliance with Italy in 1882. France and Russia became allies in 1894. They then joined with Britain to form the Triple Entente.