Q. Which two countries are involved in the Ping-pong diplomacy?
Answer: United States of America and China
Notes: The United States of America and China are the two countries involved in the Ping-pong diplomacy. Ping-pong diplomacy refers to the exchange of table tennis (ping-pong) players between the United States (US) and People's Republic of China (PRC) in the early 1970s, that began during the 1971 World Table Tennis Championships in Nagoya, Japan as a result of an encounter between players Glenn Cowan (of the US) and Zhuang Zedong (of the PRC). The event marked a thaw in Sino-American relations that paved the way to a visit to Beijing by President Richard Nixon in 1972. The event has been seen as a key turning point in relations, and the policy approach has since been carried out elsewhere.

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