The following text is adapted from an article published by the History Channel.Détente (a French word meaning release from tension) is the name given to a period of improved relations between the United States and the Soviet Union that began tentatively in 1971 and took decisive form when President Richard M. Nixon visited the secretary-general of the Soviet Communist party, Leonid I. Brezhnev, in Moscow, May 1972. Both countries stood to gain if trade could be increased and the danger of nuclear warfare reduced. In addition, Nixon–a candidate for reelection–was under fire at home from those demanding social change, racial equality, and an end to the Vietnam War. The trip to Russia, like his historic trip to China a few months earlier, permitted him to keep public attention focused on his foreign policy achievements rather than his domestic problems. Nixon’s trip to China had also heightened the Soviets’ interest in détente; given the growing antagonism between Russia and China, Brezhnev had no wish to see his most potent rivals close ranks against him. On May 22 Nixon became the first U.S. president to visit Moscow. He and Brezhnev signed seven agreements covering the prevention of accidental military clashes; arms control, as recommended by the recent Strategic Arms Limitation Talks (SALT); cooperative research in a variety of areas, including space exploration; and expanded commerce. The SALT treaty was approved by Congress later that summer, as was a three-year agreement on the sale of grain to the Soviets. In June 1973, Brezhnev visited the United States for Summit II; this meeting added few new agreements, but did symbolize the two countries’ continuing commitment to peace. Summit III, in June 1974, was the least productive; by then, the salt talks had ground to a halt, several commercial agreements had been blocked in Congress because of Soviet treatment of Jews, and the Watergate investigation was approaching a climax. Nixon’s successor in the talks, President Jimmy Carter, supported SALT II, but also pressed a military buildup and a human rights campaign, which cooled relations between the countries. With the election of Ronald Reagan, who emphasized military preparedness as the key to Soviet-American relations, détente as Nixon had envisioned it came to an end.

give me 10 annotations with 1 sentence each

1. Détente refers to a period of improved relations between the US and the Soviet Union, marked by increased trade and decreased nuclear threat.

2. President Nixon's visits to both China and the Soviet Union aimed to divert public attention from domestic issues and highlight his foreign policy achievements.
3. Nixon's trip to China sparked the Soviets' interest in détente, as they wanted to prevent closer ties between the US and China.
4. In 1972, Nixon became the first US president to visit Moscow and signed agreements on military clashes prevention, arms control, research cooperation, space exploration, and trade expansion.
5. The SALT treaty, which aimed to limit strategic arms, and a three-year grain sale agreement were later approved by Congress.
6. Brezhnev visited the US in 1973 for Summit II, symbolizing the continuation of commitment to peace between the two countries.
7. Summit III in 1974 was the least productive, with stalled SALT talks, blocked commercial agreements due to Soviet treatment of Jews, and the ongoing Watergate investigation.
8. President Carter supported SALT II but strained relations with a military buildup and a human rights campaign.
9. Détente as envisioned by Nixon came to an end with the election of President Reagan, who prioritized military preparedness in US-Soviet relations.
10. Overall, détente represented a significant attempt at reducing tensions and promoting cooperation between the US and the Soviet Union during the Cold War.