Biden is very active in the American diplomatic arena and can be seen in many major international activities. As an expert on Middle East issues, Biden severely criticized the Iran-contra incident that occurred during President Reagan's inauguration.
During President Carter's term, he was sent to the former Soviet Union to hold talks with Kosigen and Breche Nev on the issue of limiting strategic weapons, and he also helped the Bosnians in their struggle with Milosevic.
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Biden expressed dissatisfaction with Bush's tough attitude towards China when he took office in 20001,and believed that active communication and coordination was the key to resolving the differences between China and the United States. He believes that the Bush administration should continue the position of previous American administrations on the Taiwan Province Strait issue. That is, to a certain extent, deliberately ambiguous attitude.
The United States should warn China not to launch a military attack on Taiwan Province province. It should warn China that if it attacks, it will "possibly" provide military assistance to Taiwan Province province, but at the same time, it should not make a promise to Taiwan Province province that "if China attacks, the United States will send troops to protect it". Therefore, Biden did not appreciate President Bush's tough attitude towards China.