The so-called Hainan incident - which led to the death of a Chinese pilot and the detention of the crew of the American reconnaissance plane on the island - was resolved peacefully only after the US ambassador sent a letter in which he said "very sorry" two times.

The situation is far different now. The mutual distrust and lack of strategic consensus between Beijing and Washington leave hardly any room for "common- sense guardrails", in the words of President Biden during his recent virtual meeting with China's President Xi Jinping. De-escalation in a similar crisis will be far more challenging than in the past. The few confidence-building measures in place are only tactical arrangements which can hardly resolve strategic distrust.

Can US count on Aukus and Quad?

Both China and the US have vowed to avoid a new Cold War. But if the rivalry is set to intensify, can the US count on its alliances in the Indo-Pacic?

Admit it or not, Aukus, the trilateral security pact between Australia, the United Kingdom and the US, and the Quad, involving the US, India, Japan and Australia, are Washington's thinly veiled dual approaches in containing China.

The question is, how useful are they? If the rst of Australia's eight nuclear- powered submarines under Aukus is not going to be delivered before 2040, the subs will not become serious game changers. Instead, they will haunt Canberra for decades to come. Australia has no nuclear industry. If these subs have to be maintained from time to time in another country, Australia's submarine capability cannot be sovereign.

The Quad could grow into anything other than a useful military coalition against China.

Fundamentally, are the dialogue partners prepared to sacrifice their bilateral ties, especially the huge economic interactions, with China, to go on a hostile footing?

Militarily, Australia, a Quad member, is already part of Aukus. Japan, while not an Aukus member, is supportive of it. Therefore India's attitude towards China is critical to the survival and growth of the Quad. But even if India is not happy with the PLA Navy's presence in the Indian Ocean, it can hardly protest because all the military operations of the PLA in the Indian Ocean are humanitarian in nature, be it counter-piracy or disaster relief. There is no likelihood of a military clash between the PLA Navy and the Indian Navy in the Indian Ocean like the one in the land border areas between the two armies in June last year.