英露協商
In 1907, the United Kingdom and Russia signed an agreement which — on the surface —ended their rivalry in Central Asia. ("see" Anglo-Russian Entente) As part of the entente, Russia agreed to deal with the sovereign of Afghanistan only through British intermediaries. In turn, the United Kingdom would not annex or occupy Afghanistan. Chinese suzerainty over Tibet also was recognised by both Russia and the United Kingdom, since nominal control by a weak China was preferable to control by either power. Persia was divided into Russian and British spheres of influence and an intervening "neutral" zone. The United Kingdom and Russia chose to reach these uneasy compromises because of growing concern on the part of both powers over German expansion in strategic areas of China and Africa.