Original 11-dotted line map published by Republic of China in 1947. In 1950s People’s Republic of China removed 2 dotted lines in the area of Gulf of Tonkin after it reached an agreement with Vietnam. Since then map is referred to as 9-dotted/9-dash/U-shaped line.
Source: Wang, K.H. (2010). The ROC’s Maritime Claims and Practices with Special Reference to the South China Sea. Ocean Development & International Law, 41(4), p. 244. doi:10.1080/00908320.2010.499282
Map attached to Chinese note verbale to UN in protest against joint Malaysia-Vietnam submission to Committee on the Limits of Continental Shelf (May 2009)
Source: Dutton, P. (2011). Three Disputes and Three Objectives: China and the South China Sea. Naval War College Review, 64(4), p. 46.
Pingback: Taiwan Coast Guard plans live-fire excercise on Taiping island, South China Sea « Taiwan in Perspective·
Pingback: Background of the South China Sea dispute « Taiwan in Perspective·
Notice how indiscrimate and inconsistent that U-shaped line is.
Pingback: China’s ADIZ in the South China Sea: Coming Soon to Seas Near You? | Thinking Taiwan·
Pingback: China’s ADIZ in the South China Sea: Coming Soon to a Sea Near You? | Thinking Taiwan·