How did the rise of communism in the Soviet Union affect the United States' role in the rebuilding of Japan after World War II?

The United States demilitarized Japan to prevent future conflict if Japan fell to communism.
The United States was unaffected by the rise of communism in the Soviet Union in how they rebuilt Japan.
The United States controlled the Japanese government indefinitely to ensure Japan would not fall into communism.
The United States invested in the Japanese economy and created a democratic government to ensure Japan would not fall into communism.

The rise of communism in the Soviet Union did have an impact on the United States' role in the rebuilding of Japan after World War II. The United States was concerned about preventing the spread of communism in Asia, and as a result, they invested in the Japanese economy and helped establish a democratic government in Japan to ensure that the country did not fall into communism. Additionally, the United States also demilitarized Japan to prevent future conflict, as they saw Japan as a potential ally in the ongoing Cold War against communism.