The border spat could accelerate existing trends of geopolitical and economic divergence between Beijing and New Delhi, with far-reaching consequences for the region too.
Hong Kong, the autonomous state that has long been subjected to pressure from Beijing, might lose much of its financial standing if Washington leaves it in the lurch.
Will we see a new cold war emerge?
Addressing Australia's parliament on a landmark state visit, Indonesia's President Joko Widodo cast the two nations as would-be "Avengers" – "forces of good" uniting to defeat a "common enemy" and shared challenges.
The US slammed China for its "escalation" in the key global shipping route where Beijing is accused of deploying warships, arming outposts and ramming fishing vessels. Most recently, Vietnam voiced concerns on China's movements near Spratly Islands.
Ankara and the EU are at loggerheads over who has the right to explore newly-discovered gas fields.
The sustainability of China's Belt and Road Initiative in the Mediterranean will depend on whether China can help defuse tensions in the Mediterranean while respecting each country's domestic concerns.
Tense calm returned to the semi-autonomous territory after anti-government protesters broke into the legislative council in Hong Kong overnight.
Lam told media Saturday she took the move in response to widespread public unhappiness over the measure, which would enable authorities to send some suspects to stand trial in mainland courts.
"China can and should have a cooperative relationship with the rest of the region," US Acting Defence Secretary Patrick Shanahan said at the Shangri-La Dialogue in Singapore.
US President Donald Trump ended his four-day state visit by spending time with more than 800 uniformed service members in the belly of the USS Wasp, an amphibious assault ship at the Yokosuka US naval base.
China and the US have repeatedly traded barbs in the past over what Washington says is Beijing's militarisation of the South China Sea. China blames the US for sending warships and military planes, saying they ratchet up tension in the region.
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