Just five days after he saw the telegram by Sebald, W. Walton Butterworth (1903 - 1975), the Assistant Secretary for Far Eastern Affairs, sent the following letter to the Secretary of the State:
“With regard to the dispositon of islands formerly posessed by Japan in the direction of Korea it is suggested that Liancourt Rocks (Takeshima) be specified in our proposed Article 3 as belonging to Japan.
Japan’s claim to these islands is old and appears valid, and it is difficult to regard them as islands off the . Security considerations might render the provision of weather and radar station on these islands a matter of interest to the shoreof Korea ”. United States
This letter, dated November 19th 1949, had an effect on the next draft of the treaty and it became a firm belief for US Department of State until the conclusion of the treaty.