i believe its trade agreement with the US.
In the first 10 Amendments to the Constitution.
The following is the complete text of the Constitution of the Confederate States of America, as adopted on March 11, 1861. The text of the CSA Constitution was verified at the University of Oklahoma and the Library of Congress and was marked up for Web display by Steve Mount. The University of Georgia has the original hand-written copies in its archives.
In 1931 Japan invaded the Chinese in search of raw materials for its growing industry. By 1937 a large section of China was controlled by Japan and war crimes against the Chinese had become fairly common. Many believe that this ended up contributing to the isolation of Japan. This incident is said to have not been authorized by the Japanese government but many say the Japanese troops decided themselves.