China has slammed Israel and the United States for setting a bad example on the world stage through their series of attacks against Iran.

Israel's strikes against Iran, with the stated aim of preventing "possible threats in the future", as well as the US air force of bombing Iran's nuclear facilities, which operate under the supervision of the International Atomic Energy Agency, send an "erroneous signal" to the world, Foreign Minister Wang Yi said.

Wang made the remarks when meeting with former British prime minister Tony Blair in Beijing on Monday.

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Differences between countries should be addressed peacefully through dialogue and consultation, Wang said, adding that what Israel and the US have done is set "an egregious precedent" that has already produced serious outcomes.

"One needs strength to protect peace. But strength does not necessarily bring true peace," he added, calling on all parties to deescalate the situation and return to talks.

Blair said Britain, which is a long-time ally of Israel, has called for negotiations and the restoration of peace, security and stability in the region as soon as possible.

Wang said "certain major countries" are turning away from their international responsibilities by putting their own interest above the shared interests of the world.

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China and Britain, both permanent members of the United Nations Security Council, should shoulder their responsibilities and work for world peace and development, Wang continued, adding that China stands ready to promote sound and steady development of ties with Britain.

Blair said bilateral ties between China and Britain are very important, and that both sides should strengthen exchanges and carry out wide-ranging and mutually beneficial cooperation.