The Russian-Japanese War of , caused by Russian and Japanese expansionism in the Far East, inflicted humiliating defeats on Russia at land and sea. The war contributed to domestic unrest in both countries, catalysing the revolution of in Russia. The rise of Japan also sent reverberations across the world. The war between Russia and Japan was provoked by strategic issues, the international context and personal factors. Russian expansionism and rapid Japanese military growth and modernisation generated clashes over military, political and commercial interests in East Asia.
Total: 58,—86,  . Total: 43,—,  . Russia sought a warm-water port on the Pacific Ocean for its navy and for maritime trade. Vladivostok was operational only during the summer, whereas Port Arthur , a naval base in Liaodong Province leased to Russia by China, was operational all year. Since the end of the First Sino-Japanese War in , Japan feared Russian encroachment on its plans to create a sphere of influence in Korea and Manchuria.
Russia sought warm-water ports and control of Manchuria, while Japan opposed them. Japan emerged as a naval power and Admiral Togo Heihachiro achieved international fame. Russia lost two of its three naval fleets. Amazingly, the Japanese Empire defeated the Russian Empire , thanks mostly to superior naval strength and tactics.
Russo-Japanese War , —05 , military conflict in which a victorious Japan forced Russia to abandon its expansionist policy in the Far East, becoming the first Asian power in modern times to defeat a European power. China subsequently leased it to Russia. Japan won a convincing victory over Russia, becoming the first Asian power in modern times to defeat a European power.