The Pact of Neutrality signed and ratified by Japan and the Soviet Union reads :
The Japanese Empire and the Union of Soviet Socialist Republics prompted by their desire of strengthening the peaceful and friendly relations subsisting between the two countries have decided to conclude a Pact of Neutrality and have mutually agreed as follows :
Article 1. The two High Contracting Parties agree to maintain peaceful and friendly relations and to respect each other's territorial integrity and inviolability.
Article 2. In case either one of the High Contracting Parties becomes an object of military action by one or more third Powers, the other Party shall observe neutrality throughout the entire period of such a conflict.
Article 3. The present Pact shall be enforced from the day of the completion of its ratification by both High Contracting Parties and it shall be valid for a period of five years. In case neither of the High Contracting Parties gives notice of its abrogation a year before the expiration of the said period, the Pact shall be regarded as having automatically been prolonged for a further five years.
Article 4. The present Pact shall be ratified as soon as possible. An exchange of ratifications shall take place in Tokyo as soon as possible.
A Joint Declaration of the two Governments is to the following effect :
The Government of the Japanese Empire and the Government of the Union of Soviet Socialist Republics, in order to assure the peaceful and friendly relations subsisting between them on the basis of the spirit of the Neutrality Pact concluded between the two countries, respect, on the part of the Japanese Empire the territorial integrity and inviolability of the People's Republic of Mongolia, and on the part of the Union of Soviet Socialist Republics, the territorial integrity and inviolability of the Empire of Manchoukuo.