Anglo-Japanese AllianceEngland, UK
The first Anglo-Japanese Alliance was an alliance between Britain and Japan, signed in January 1902. The main threat for both sides was from Russia. France was concerned about war with Britain and, in cooperation with Britain, abandoned its ally, Russia, to avoid the Russo-Japanese War of 1904. However, Britain siding with Japan angered the United States and some British dominions, whose opinion of the Empire of Japan worsened and gradually became hostile.