Anglo-Russian Entente
Britain abandoned the splendid isolation in the 1900s after it had been isolated during the Second Boer War. Britain concluded agreements, limited to colonial affairs, with its two major colonial rivals: the Entente Cordiale with France in 1904 and the Anglo-Russian Entente in 1907. Some historians see Britain's alignment as principally a reaction to an assertive German foreign policy and the buildup of its navy from 1898 that led to the Anglo-German naval arms race.