The Japan–Korea Treaty of 1904 was made between representatives of the Empire of Japan and the Korean Empire in 1904. Negotiations were concluded on February 23, 1904. Though Korea declared neutral to Russo-Japanese War, Japanese troops entered Seoul on 9th February 1904, declared war to Russia and kidnapped some pro-Russia in Korea including Lee Yong-ik (이용익). The treaty was confirmed invalid in 1965 by Treaty on Basic Relations between Japan and the Republic of Korea