The original agreement was signed by Georgy Chicherin and Walter Rathenau, while a secret addendum signed later that year allowed one nation to train its army in the other's territory, violating the Treaty of Versailles.  
Hans von Seeckt was a proponent of this agreement and hoped that it would be expanded. Heinrich Brandler faced a significant political task in justifying this treaty to his party because it gave legitimacy to a government they wanted to replace.  A supplement to it signed seven months later extended its provisions to such states as the Republic of the Far East, Azerbaijan, and Armenia, and was signed by Freiherr von Maltzan and Nikolaus Krestinski.  The original agreement was signed by Georgy Chicherin and Walter Rathenau, while a secret addendum signed later that year allowed one nation to train its army in the other's territory, violating the Treaty of Versailles.  FTP, name this 1922 treaty which forged a military alliance between Germany and the Soviet Union and which was signed in an Italian resort town.
Hans von Seeckt was a proponent of this agreement and hoped that it would be expanded.
Treaty of Rapallo