sentences:  Immediately after regaining the independence, Estonia started to insist that the Soviet Union (and later Russia) should withdraw their troops from Estonian territory and that the process should be completed by the end of the year.The Soviet government responded that withdrawal could not be completed before 1994 due to lack of available housing.In the fall of 1991 the Soviet Union claimed Estonia's new citizenship policy, still in the process of being developed, was a violation of human rights.