a) John F. Kennedy

John F. Kennedy, the 35th President of the United States, received a dog named Pushinka from Soviet leader Nikita Khrushchev. This gift was a symbol of the brief thaw in U.S.-Soviet relations during the Cold War and added a personal dimension to the complex relationship between the two superpower leaders. Pushinka, a descendant of Soviet space dogs, became a beloved part of the Kennedy family and a quirky footnote in the history of the Cold War.