Post-communist Russia, as the main successor state to the Soviet Union, suffered important "losses" after the end of the Cold War including: O. Territory that had historically been part of Russia since Tsarist times. OB. Superpower status and corresponding influence over world affairs. OC. Its membership within the North Atlantic Treaty Organization (NATO). O D. Options A and B are both correct. O E. Options A, B, and C are all correct.

After the dissolution of the Soviet Union in 1991, Russia indeed faced significant challenges, including a substantial loss of territory. Many regions that were once part of the USSR became independent countries. This was a blow to national pride and complicated Russia's geopolitical landscape. Superpower status was also abandoned, leading to a shift in global dynamics where the U.S. emerged as the sole superpower and Russia had to recalibrate its role on the world stage. Moreover, NATO's eastward expansion further complicated Russia's strategic position, as former Soviet states sought closer ties with the West. Russia's exclusion from NATO (unlike in past eras when it held considerable sway over Europe) not only signified a loss of influence but also raised tensions that have echoed through 21st-century politics, emphasizing the ongoing struggle between Eastern and Western paradigms.