LONDON: The US and UK are facing growing international criticism over a new security pact signed with Australia.
The deal - seen as an effort to counter China - will see the US and UK give Australia the technology to build nuclear-powered submarines, reports BBC.
While they did not mention China, Aukus is being widely viewed as an effort to counter Beijing's influence in the contested South China Sea. Johnson later told MPs that the agreement was "not intended to be adversarial" to China.
But the prime minister was questioned by his predecessor, Theresa May, about whether the deal could lead to Britain being dragged into war with China.
She asked the prime minister about the "implications" of the partnership in the event of a Chinese invasion of Taiwan.
Johnson replied: "The United Kingdom remains determined to defend international law and that is the strong advice we would give to our friends across the world, and the strong advice that we would give to the government in Beijing." Democratic Taiwan sees itself as a sovereign state, but Beijing has increased pressure on the island which it views as a breakaway province.
Meanwhile Washington has sought to quell anger in Paris at the pact, which has scuppered a multibillion-dollar submarine deal France had signed with Australia.
French diplomats in Washington cancelled a gala to celebrate ties between the US and France in retaliation.
"It's a very low moment," France's former ambassador to the US, Gérard Araud, told the BBC's World Tonight programme. "The US knew that this contract and this strategic contract were essential French national interests, and the US didn't care."
US Secretary of State Antony Blinken called France "a vital partner" and said Washington would still work "incredibly closely" with Paris.
White House Press Secretary Jen Psaki shrugged off the French criticisms.
"There are a range of partnerships that include the French and some partnerships that don't, and they have partnerships with other countries that don't include us," she said. "That is part of how global diplomacy works."
The pact, which will also see the allies share cyber capabilities, artificial intelligence and other undersea technologies, was described as showing "profound strategic shifts" by the UK's national security adviser Stephen Lovegrove.
It means Australia will become just the seventh nation in the world to operate nuclear-powered submarines.
Lovegrove said the pact was "perhaps the most significant capability collaboration in the world anywhere in the past six decades".
China, meanwhile, has accused the allies of having a "Cold War mentality" that would hurt their own interests.
The Chinese state-run Global Times warned of an arms race for nuclear submarines, adding that Australian soldiers were likely to be the "first to die" in a Chinese "counterattack".
And on Friday, China's President Xi Jinping said foreign powers should not be allowed to interfere in the country's affairs.
"The future of our country's development and progress should lie firmly in our own hands," he said, according to state media.
But Australia's defence minister, Peter Dutton, brushed aside Beijing's reaction.
"This is not the first time that we've seen different outbursts from China in terms of Australia's position," he said.
"We are a proud democracy in our region. We stand with our neighbours in the Indo-Pacific to ensure enduring peace, and this collaboration makes it a safer region. That's the reality and no amount of propaganda can dismiss the facts."
Meanwhile, China applied to join a key Asia-Pacific trade pact on Thursday as it attempts to strengthen its position in the region.
The country's foreign ministry, however, denied that the move to join the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) was a response to the UK-US-Australia pact.
Joining the CPTPP, which was signed in 2018 by 11 countries including Australia and Japan, would mark a significant boost to China's trading power.