These gains were significant for several reasons. First, they greatly expanded the Soviet Union's territory and strengthened its geopolitical position in Europe. Second, the acquisition of these territories provided the Soviet Union with access to important resources and industrial centers. Third, the establishment of Soviet-dominated regimes in Eastern Europe created a buffer zone between the Soviet Union and Western Europe, enhancing its security.
While the United States and Great Britain also achieved certain objectives at Yalta and Potsdam, such as the establishment of the United Nations and the division of Germany into occupation zones, the Soviet Union arguably made the most significant gains from these conferences and emerged as the dominant power in Eastern Europe.