The undersigned plenipotentiaries, on concluding the German Russian Boundary and Friendship Treaty, have declared their agreement upon the following:

Both parties will tolerate in their territories no Polish agitation which affects the territories of the other party. They will suppress in their territories all beginnings of such agitation and inform each other concerning suitable measures for this purpose.

Moscow, September 28,1939.

For the Government of the German Retch:

J. RIBBENTROP

By authority of the Government of the U.S.S.R.:

W. MOLOTOV