Political ScienceClass 12The End of Bipolarity

The End of Bipolarity | Class 12 Political Science Notes

By ConceptScroll Team · Published on 17 July 2026 · 4 min read

The End of Bipolarity – this guide gives you a concise, exam-ready overview of The End of Bipolarity from Class 12 Political Science, written by ConceptScroll editors and reviewed against the latest NCERT textbook.

WHAT WAS THE SOVIET SYSTEM?

The Union of Soviet Socialist Republics (USSR) was established after the socialist revolution in Russia in 1917, inspired by the ideals of socialism which opposed capitalism and aimed to create an egalitarian society. This was one of the largest attempts in history to abolish private property and design a society based on equality. The Soviet system gave primacy to the state and the Communist Party, which was the sole political authority; no other political parties or opposition were allowed. The economy was centrally planned and controlled by the state. After World War II, the Soviet army liberated several East European countries from fascist forces, and these countries came under Soviet control. Their political and economic systems were modeled after the USSR, forming the 'Second World' or the socialist bloc, held together by the Warsaw Pact military alliance with the USSR as the leader. The Soviet Union emerged as a great power with an economy more developed than most of the world except the United States. It had vast energy resources like oil, iron, steel, and a complex communications and transport network connecting its vast territory. The Soviet state ensured a minimum standard of living for all citizens, subsidizing health, education, childcare, and welfare schemes. However, the system was bureaucratic and authoritarian, lacking democracy and freedom of speech, which stifled dissent. The Communist Party tightly controlled all institutions and was unaccountable to the people. Although the USSR consisted of fifteen republics, Russia dominated, causing feelings of neglect and suppression among other republics. Despite matching the US in the arms race at great cost, the Soviet Union lagged behind in technology and consumer goods quality. The invasion of Afghanistan in 1979 further weakened the system, leading to economic stagnation and shortages.

📊 Diagram: The section includes portraits of Soviet leaders such as Vladimir Lenin, Joseph Stalin, Nikita Khrushchev, Leonid Brezhnev, and Mikhail Gorbachev, illustrating the leadership that shaped the Soviet system over time.

🔗 Connection: Understanding the Soviet system's structure and challenges leads to the discussion on Gorbachev's reforms and the eventual disintegration of the USSR in the next section.

Frequently asked questions

1. Which among the following statements that describe the nature of Soviet economy is wrong? a. Socialism was the dominant ideology b. State ownership/control existed over the factors of production c. People enjoyed economic freedom d. Every aspect of the economy was planned and controlled by the State

The correct answer is c. People enjoyed economic freedom. Explanation: The Soviet economy was characterized by socialism as the dominant ideology, state ownership and control over the factors of production, and a planned economy where every aspect was controlled by the state. Economic freedom was limited or non-existent for individuals.

2. Arrange the following in chronological order: a. Soviet invasion of Afghanistan b. Fall of the Berlin Wall c. Disintegration of the Soviet Union d. Russian Revolution

Chronological order: 1. d. Russian Revolution (1917) 2. a. Soviet invasion of Afghanistan (1979) 3. b. Fall of the Berlin Wall (1989) 4. c. Disintegration of the Soviet Union (1991) Explanation: The Russian Revolution occurred first in 1917, establishing the Soviet regime. The Soviet invasion of Afghanistan happened in 1979. The Berlin Wall fell in 1989, symbolizing the end of Cold War divisions. Finally, the Soviet Union disintegrated in 1991.

3. Which among the following is NOT an outcome of the disintegration of the USSR? a. End of the ideological war between the US and USSR b. Birth of CIS c. Change in the balance of power in the world order d. Crises in the Middle East

The correct answer is d. Crises in the Middle East. Explanation: The disintegration of the USSR led to the end of the ideological war between the US and USSR, the birth of the Commonwealth of Independent States (CIS), and a change in the global balance of power. However, crises in the Middle East were not a direct outcome of the USSR's disintegration.

4. Match the following: i. Mikhail Gorbachev a. Successor of USSR ii. Shock Therapy b. Military pact iii. Russia c. Introduced reforms iv. Boris Yeltsin d. Economic model v. Warsaw e. President of Russia

Correct matches: i. Mikhail Gorbachev - c. Introduced reforms ii. Shock Therapy - d. Economic model iii. Russia - a. Successor of USSR iv. Boris Yeltsin - e. President of Russia v. Warsaw - b. Military pact Explanation:

  • Gorbachev initiated reforms in the USSR.
  • Shock Therapy refers to rapid economic reforms transitioning to capitalism.
  • Russia is the successor state of the USSR.
  • Boris Yeltsin was the first President of Russia.
  • Warsaw refers to the Warsaw Pact, a military alliance.

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