The document was signed by the defense ministers of the two countries after a meeting in Tehran.
Iran’s Defense Minister Brigadier General Hossein Dehqan held talks with his Russian counterpart, General Sergei Shoigu, who arrived in the Iranian capital on Monday night.
The agreement calls for the expansion of military cooperation between Tehran and Moscow.
It also includes provisions that entail closer cooperation on “maintenance of regional and international peace, security and stability, and the fight against various types of terrorism, separatism and extremism.”
The Russian defense minister is heading a delegation of senior officials. He arrived in Tehran on Tuesday and is scheduled to hold talks with senior Iranian officials.