The notes of protest which the United States, the United Kingdom, and France sent to the Danube Commission governments on November 15, 1949, were answered by the Soviet Union on March 9, 1950, and by Bulgaria on March 28, 1950. Both governments rejected the western protests, the Soviet note commenting that the Danube Commission's Convention of August 18, 1948, eliminated the injuristices of previous international waterways concepts and established the jurisdiction of the riparian states. The note added that the Soviet government would not consider the protests registered by Belgium, Italy and Greece since they were not members of the Danube River Commission under the previous navigational treaty of 1921.