The Treaty of Berlin (1885) aimed to regulate imperialism in Africa, while the 'Triple Intervention' forced Japan to yield Port Arthur.
The main aims of the Treaty of Berlin (1885) were to settle any disputes between them by negotiation rather than war.
Russia wanted to gain control over Port Arthur because it wanted Russian support for its own imperial ambitions in the Far East.
Countries that signed the Treaty of Berlin (1885) agreed to regulate imperialism in Africa and prevent conflict between rival European nations.
Russia claimed that the Treaty of Shimonoseki (1895) was a violation of its interests in the Far East.
Because it did not want to become isolated, and because it could not compete with the combined military power of Russia, France and Germany, Britain agreed to join the 'Triple Intervention', which forced Japan to give up its rights to Port Arthur.
Germany joined the "Triple Intervention' because it did not want France to gain too much power in Asia.
Japan had no choice but to give up its rights to Port Arthur because they were outnumbered by the combined forces of Russia, France and Germany.
The Treaty of Berlin (1885) attempted to justify European imperialism in Africa by arguing that it would bring civilization to Africa and help to develop the continent.
The Fashoda Incident did not lead to war because both Britain and France were prepared to negotiate and compromise over their rival claims in Africa.
That the imperial nations were prepared to work together to protect their joint interests in China is confirmed by the fact that they united to defeat Chinese nationalists during the Boxer Rebellion.