Was Japan the only country to get nuked?

No, Japan was not the only country to be nuked. The United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki in August 1945, resulting in the deaths of hundreds of thousands of people and the eventual surrender of Japan. However, the United States also conducted nuclear tests at the Bikini Atoll in the Marshall Islands and at the Nevada Test Site in the United States. In addition, the Soviet Union conducted nuclear tests at various sites in the Soviet Union and in Kazakhstan. There have been no nuclear weapons used in warfare since 1945.