The North Atlantic Treaty Organization, made up of 30 countries, said China's growing military ambitions pose new challenges to the alliance, and they agreed, during the annual summit in Brussels, to form a united front against China's stated aspirations in Europe, according to New York Times.

U.S. President Joe Biden said at a news conference that “Russia and China seek to sow disagreement between us, but our alliance is strong. A ?nited NATO and the United States are back."

The summit's concluding statement expressed Allied concerns.

China's description, contained in a statement released at the end of the one - day summit attended by President Biden and others, reflects a new concern about how China intends to use the military cyber technologies in the coming years.

At the UK G7 summit that ended on Sunday, Biden and his colleagues agreed to face together against China's growing economic dominance. NATO countries have also warned that China is increasingly posing a global security problem as well, signaling a fundamental change in alliance concerns.

The first small reference against China was in the NATO Declaration at the London Summit in 2019, but global concerns have accelerated rapidly since then.

Both Biden and former President Donald Trump have placed greater emphasis on the threats posed by China, as an authoritarian political system with increased spending and military ambitions, including the emerging military cooperation with Russia.

NATO Secretary-General Jans Stoltenberg has said that China now has the second largest military budget after the United States and is the largest naval power in the world. China is also working to improve its nuclear stockpile and develop more advanced missiles and ships.

Stoltenberg added: "China is not our rival, but the balance of power is changing. China is approaching. We see them in cyberspace, in Africa, but we also see China investing heavily in our critical infrastructure." "We need to respond together as an alliance," he added.

The Chinese military has also hacked into computers to steal industrial and military secrets around the world and dealt with disinformation in NATO communities.

The Alliance stressed that "China's stated aspirations and continued conduct pose challenges to the foundations of the rules-based international order, and in areas of importance to Alliance security."