The Japan–Korea Treaty of 1905, also call as a Eulsa Treaty, Eulsa Unwilling Treaty or Japan–Korea Protectorate Treaty, was presented between the Empire of Japan together with the Korean Empire in 1905. Negotiations were concluded on November 17, 1905. The treaty deprived Korea of its diplomatic sovereignty and introduced Korea a protectorate of Imperial Japan. It resulted from Imperial Japan's victory in the Russo-Japanese War in 1905.
Thereafter, Gojong tried to inform the international community of the injustice of the 2nd Korea-Japan Agreement, but according to the logical system of the international situation at the time, Gojong's secrets were non effective. Gojong's declaration of Rescission in the Eulsa Treaty had the following, but it was not recognized internationally:
This treaty, later, was confirmed to be "already null and void" by the Treaty on Basic Relations between Japan and the Republic of Korea concluded in 1965.
In a joint result on June 23, 2005, officials of South Korea and North Korea reiterated their stance that the Eulsa treaty is null and void on a claim of coercion by the Japanese.
As of 2010, South Korea was seizing property and other assets from the descendants of people who develope been included as pro-Japanese collaborators Chinilpa at the time of the treaty.