The nine-dotted line has been used by China to show the maximum extent of its claim without indicating how the dots would be joined if it was continuous and how that would effect the extent of the area claimed by China. The Philippines, Vietnam, Malaysia, Brunei and Indonesia have all officially protested over the use of such a line.
Immediately after China submitted a map to the UN including the 9-dotted lines territorial claim in the South China Sea on May 7, 2009, the Philippines lodged a diplomatic protest against China for claiming the whole of South China Sea illegally. Vietnam and Malaysia filed their joint protest a day after China submitted its 9-dash line map to the UN. Indonesia also registered its protest, even though it did not have a claim on the South China Sea.
In 2013 the PRC extended their claims with a new ten-dash map, but asserted that they had control over foreign fisheries in only a subset of the region.
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