What was the outcome of the Russo-Japanese War?

The outcome of the Russo-Japanese War, which lasted from 1904 to 1905, was significant in establishing Japan as a major world power. Japan's victory in this conflict allowed it to gain control over parts of Manchuria and secured its dominance over Korea. This war was notable because it marked the first time an Asian power defeated a European power in modern history, leading to a shift in the balance of power in East Asia. Japan's successful military campaigns demonstrated its industrial and military modernization, which had been accomplished during the Meiji Restoration.

The other choices do not accurately reflect the realities of the war’s outcome. Russia did not emerge from the war strengthened; instead, it faced political and social unrest at home that contributed to the 1905 Revolution. The notion of a lasting peace treaty is misleading in this context, as the war concluded with a peace treaty facilitated by the United States, but tensions remained in the region for years afterward. Lastly, Russia was unable to successfully defend its territories, leading to substantial losses and showcasing its vulnerabilities in military capabilities at the time.