ASEAN held its regional forum last week in Bali, Indonesia, against a background of sharply escalating territorial disputes in the South China Sea. On July 23, US Secretary of State Hillary Rodham Clinton, who was present at the forum, called on all parties to these disputes to abide by international law and “clarify their claims in the South China Sea in terms consistent with customary international law,” rather than just basing them on historical precedent. China has always stressed that its territorial claims in the South China Sea are based on historical fact.
If any country could claim sovereignty over any place based on historical precedent or fact, and if Mongolians and Manchus are counted as part of the great Chinese nation, then the big swathes of European territory once ruled over by the Mongolian empire and the parts of Siberia formerly occupied by the Manchu-ruled Qing Empire would all belong to China, so why doesn’t China claim sovereignty over those territories?