Postscript: On U.S. Government Aeronautical Charts Published in 1953 and 1954 Indicating that Takesh
5 April 2022
Chart 1:USAF JET NAVIGATION CHART，JN-25，YELLOW SEA，1st EDITION，September 1954 (Vicinity of Jeju Island) （From the collection of the National Archives of the United States） ※ The boundary between the KOREA ADIZ and the JAPAN ADIZ is drawn on the 33rd parallel north to the south of Jeju Island. [...] The dotted line itself is not blue but gray-colored (see chart 9; the color of the dotted line on the map corresponds to the color of the dotted line in the legends, where it is identified as “Division of Insular Sovereignty (land areas only).” Neither the color of the two country names (Korea and Japan) sandwiching the dotted line nor that of the names of the islands is blue; they are either gray. [...] border near Voroshilovgrad) （From the collection of the National Archives of the United States） 16 As for the boundary between China and Korea it generally runs along the Tumen River in the east and along the Amur River in the western and central regions. [...] Other places the national boundary line is broken are, third, between Linjiang and Chasong, North Korea, in the vicinity of Uppong-dong, North Korea, to the south of Chasong along the Yalu River (not in the aeronautical chart except for “○” to signify the presence of a Town and Village); fourth, between North Korea’s Chasong and Wiwon County (no name or “○” on the chart) to the west of KANGGYE (KO. [...] In the 1:27,000,000-scale “Map of Republic of Korea’s Location,”; maritime national borders are drawn to the east of Dokdo (Takeshima) in the East Sea (Sea of Japan), contrary to the position of the Japanese government, as well as between Busan and Tsushima Island, between the Sakishima Islands and Taiwan, south of Taiwan, and between Sakhalin (South Karafto) and Hokkaido (see chart 20).