The Morocco–Congo Treaty was signed on 4 November 1911 in Berlin between the French and Germans, and recognised French domination of Morocco. This event concluded the Agadir Crisis.
With the so-called Morocco-Congo agreement the German Empire recognized the French domination of Morocco. In return, France ceded parts of the French Congo and French Equatorial Africa to the German Reich, comprising the Neukamerun.
References
Morocco–Congo Treaty Wikipedia(Text) CC BY-SA