The Soviet Union tested its first atomic device in 1949,years earlier than Americans had anticipated.

Name: The Soviet Union tested its first atomic device in 1949,years earlier than Americans had anticipated.
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This statement is true. The Soviet Union tested its first atomic device in 1949, which was earlier than what the Americans had anticipated. This event marked the beginning of the nuclear arms race between the two superpowers during the Cold War.

The Soviet Union Tested Its First Atomic Device in 1949,years