The (Landmarks July 16), August 21, 1937, and the Soviet Union signed a non-aggression treaty.

1937 21, China's Foreign Minister Wang Chong-hui and the Soviet ambassador to China Borghese Mo Luofu behalf of their respective governments signed the Sino-Soviet non-aggression treaty. Treaty provides that Contracting Parties "denounced war to resolve international disputes", "convention may not be alone or in combination with other countries or the majority of the country with respect to each other for any aggression". The treaty also provides that, "If the two States Parties of the party by one or more third countries aggression State Party convention, the entire duration of the conflict, for the third country shall not directly or indirectly be any help, and may not for any action or enter into any Agreement caused by the aggression and the country was not conducive for the purposes by the party to aggression ".