premise: His remarks came on the sidelines of an Association of Southeast Asian Nations (ASEAN) meeting next week, which will be followed by the inaugural East Asia summit.
  The summit in the Malaysian capital brings together the 10 members of ASEAN as well as China, Japan, South Korea, and India, Australia, New Zealand.
  The inclusion of Australia, New Zealand and India was the result of concern raised by Singapore, Japan and Indonesia over possible Chinese dominance in the absence of the United States.
  Li dismissed fears that China was harbouring ambitions to be dominant in the region, replacing the traditionally more powerful influence of the United States and Japan.
  "We have lots of issues at home. We are focusing... on improving the living of the 1.3 billion Chinese people," Li said.
   What caused Singapore, Japan, and Indonesia to raise concerns to address at the summit?
hypothesis: fears that China was harbouring ambitions to be dominant in the region