This act by the United States resulted in Japan attacking Pearl Harbor.

Invasion

Treaty with China

Oil embargo

Political sanctions

1937.

July: Japan invades North China from Manchuria.

1940.

July: U. S. imposes trade sanctions, followed by an embargo, aimed at curbing Japan's military aggression in Asia.

1941.

January: Adm. Yamamoto begins communicating with other Japanese officers about a possible attack on Pearl Harbor.