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Answer:
"established relations with China"
Explanation:
Richard Nixon Along with Secretary of State Kissinger, he redefined the role of the United States on the world stage. A gradual withdrawal of the 500,000 US soldiers fighting in South Vietnam was carried out, although the withdrawal lasted for four years. His greatest achievement was his approach and opening of relations with the People's Republic of China. Nixon also traveled to Moscow to negotiate the first step for an agreement on limiting strategic weapons.
NATO was designed to improve on the alliances of the past and to modernize the alliance system in light of the threat of nuclear power. The idea of collective security meant that war could trigger alliances linked on social, political and economic and ideological frameworks as well as a deterrent in terms of nuclear power.
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