๐ŸŒ End of Bipolarity – Class 12 Political Science Chapter 1 | NCERT Notes & Summary (2025–26)

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๐Ÿ”ฅ Class 12th - Political Science ๐Ÿš€


๐Ÿ“– Chapter 1: End of Bipolarity ๐ŸŒ⚡

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๐Ÿ“– Chapter 1: End of Bipolarity ๐ŸŒ⚡

๐Ÿ” What Does This Chapter Mean?

This chapter explains the end of the Cold War ๐Ÿ•Š️❄️, which led to the collapse of the Soviet Union (USSR) in 1991. The world shifted from a bipolar system (USA ๐Ÿ‡บ๐Ÿ‡ธ vs. USSR ๐Ÿ‡ท๐Ÿ‡บ) to a unipolar world dominated by the USA. ๐ŸŒŽ

๐Ÿ›️ How It All Started?

•After World War II (1945), the world was divided into two powerful blocs:

๐Ÿ”ต USA & Capitalist Countries (Western Bloc)

๐Ÿ”ด USSR & Communist Countries (Eastern Bloc)

•The rivalry between these two superpowers was called the Cold War ❄️๐Ÿ”ฅ.

•In 1991, the USSR disintegrated, and 15 new independent nations were formed. ๐Ÿณ️



✳️ Soviet Union (U.S.S.R.) ๐Ÿ‡ท๐Ÿ‡บ

๐Ÿ”น After the 1917 Russian Bolshevik Revolution, the Union of Soviet Socialist Republics (U.S.S.R.) was formed. ๐Ÿ›️✨

๐Ÿ”น The Soviet Union was made up of 15 republics, meaning 15 different countries were united under one system. ๐ŸŒ๐Ÿ”—

๐Ÿ”น It was created to protect the interests of the poor and was based on socialist and communist ideologies. ⚖️๐Ÿ”ด

๐Ÿ›️ 15 Republics of the U.S.S.R.:

1️⃣ Russia ๐Ÿ‡ท๐Ÿ‡บ
2️⃣ Ukraine ๐Ÿ‡บ๐Ÿ‡ฆ
3️⃣ Georgia ๐Ÿ‡ฌ๐Ÿ‡ช
4️⃣ Belarus ๐Ÿ‡ง๐Ÿ‡พ
5️⃣ Uzbekistan ๐Ÿ‡บ๐Ÿ‡ฟ



❇️ Soviet System ๐Ÿ‡ท๐Ÿ‡บ⚙️

๐Ÿ”น The Soviet system was a centralized, state-controlled (เคฐाเคœ्เคฏ-เคจिเคฏंเคค्เคฐिเคค) system guided by the Communist Party ๐Ÿ›️๐Ÿ”ด.

๐Ÿ”น It aimed to create an egalitarian (เคธเคฎाเคจเคคा เค†เคงाเคฐिเคค) society by using centralized planning and state ownership.

๐Ÿ”น In simple terms, it was the system through which the Soviet Union developed (เคตिเค•เคธिเคค เคนुเค†). ๐Ÿš€๐Ÿ“ˆ



❇️ Key Features of the Soviet System ⚡

Opposition to Capitalism (เคชूंเคœीเคตाเคฆ) –❌๐Ÿ’ฐ

Planned Economy (เคจिเคฏोเคœिเคค เค…เคฐ्เคฅเคต्เคฏเคตเคธ्เคฅा) – The economy was centrally planned, with no free market. ๐Ÿ“Š๐Ÿ› ️

Dominance of the Communist Party (เค•เคฎ्เคฏुเคจिเคธ्เคŸ เคชाเคฐ्เคŸी เค•ा เคช्เคฐเคญाเคต) – Only one party had full control over politics and governance. ๐Ÿ›️๐Ÿ”ด

Guaranteed Basic Living Standards (เคฎूเคฒเคญूเคค เคœीเคตเคจ เคธुเคตिเคงाเคँ) – No unemployment, and basic needs were provided by the state. ๐Ÿก๐Ÿž

Advanced Communication System (เคธंเคšाเคฐ เคช्เคฐเคฃाเคฒी) – The USSR had a strong network of transportation and communication. ๐Ÿ“ก๐Ÿš„

State Ownership of Property (เคฐाเคœ्เคฏ เค•ी เคฎिเคฒ्เค•िเคฏเคค) – The government controlled land, factories, and industries. ๐Ÿญ๐Ÿ›️

Control Over Means of Production (เค‰เคค्เคชाเคฆเคจ เค•ा เคจिเคฏंเคค्เคฐเคฃ) – The state managed all production and resources. ๐Ÿ”ง⚙️



❇️ Difference Between Soviet Communist Economy & American Capitalist Economy ๐ŸŒ๐Ÿ’ฐ


๐ŸŸฅ Soviet Economy (เคธเคฎाเคœเคตाเคฆी เค…เคฐ्เคฅเคต्เคฏเคตเคธ्เคฅा)

๐ŸŸฆ American Economy (เคชूंเคœीเคตाเคฆी เค…เคฐ्เคฅเคต्เคฏเคตเคธ्เคฅा)

(i) Fully controlled by the state (เคฐाเคœ्เคฏ) ๐Ÿ›️

(i) Minimal state intervention in the economy ๐Ÿšซ๐Ÿ›️

(ii) Planned economy (เคฏोเคœเคจाเคฌเคฆ्เคง) ๐Ÿ“Š๐Ÿ”ง

(ii) Based on free market competition (เคช्เคฐเคคिเคฏोเค—िเคคा) ๐Ÿ’น⚡

(iii) No private capital (เคจिเคœी เคชूंเคœी เคจเคนीं) ❌๐Ÿ’ฐ

(iii) Private capital is important ๐Ÿ’ต✅

(iv) Inspired by socialist ideals (เคธเคฎाเคœเคตाเคฆी เคตिเคšाเคฐ) ๐Ÿ”ด⚖️

(iv) Focused on profit maximization (เคฒाเคญ เคฌเคข़ाเคจा) ๐Ÿ“ˆ๐Ÿ’ฐ

(v) State owns means of production (เคฐाเคœ्เคฏ เค•ा เคธ्เคตाเคฎिเคค्เคต) ๐Ÿญ๐Ÿ›️

(v) Market controls means of production (เคฌाเคœाเคฐ เค•ा เคจिเคฏंเคค्เคฐเคฃ) ๐Ÿ“Š๐Ÿ›️



❇️ Weaknesses of Communist Rule in the Soviet Union ๐Ÿ‡ท๐Ÿ‡บ⚖️

๐Ÿ”น The Communist Party ruled the Soviet Union for 70 years, but over time, it lost accountability (เคœเคตाเคฌเคฆेเคนी) to the people. ๐Ÿ›️❌

๐Ÿ”น Some major weaknesses of the Soviet system were:

1️⃣ Political and Administrative Stagnation (เคช्เคฐเคถाเคธเคจिเค• เคœเคก़เคคा) – The Soviet system became rigid, making governance ineffective. ๐Ÿ›️⚠️

2️⃣ Widespread Corruption (เคญ्เคฐเคท्เคŸाเคšाเคฐ) – The government was filled with corruption, and leaders failed to correct their mistakes. ๐Ÿ’ฐ๐Ÿšจ

3️⃣ Highly Centralized Rule (เค•ेเคจ्เคฆ्เคฐीเคฏ เคถाเคธเคจ) – The entire country was controlled by a central authority, leaving no room for regional independence. ๐Ÿข๐Ÿ”—

4️⃣ Declining Public Support (เคธเคค्เคคा เค•ा เคœเคจाเคงाเคฐ เค–िเคธเค•เคจा) – People started losing trust in the Communist Party as some leaders acted like dictators with no concern for public welfare. ๐Ÿ‘‘❌

5️⃣ Privilege Gap (เคตिเคถेเคทाเคงिเค•ाเคฐों เค•ी เค…เคธเคฎाเคจเคคा) – Party officials enjoyed special privileges that common citizens did not have, increasing dissatisfaction. ๐Ÿ›️๐Ÿ’ผ➡️๐Ÿ‘ฅ

Due to these weaknesses, the Soviet Union eventually collapsed in 1991, marking the end of Communist rule! ๐Ÿ“œ๐Ÿš€



❇️ Mikhail Gorbachev ๐Ÿ•Š️

๐Ÿ”น In the 1980s, Mikhail Gorbachev introduced political reforms and democratization (เคฒोเค•เคคंเคค्เคฐीเค•เคฐเคฃ) to modernize the Soviet system. ๐Ÿ›️✨

๐Ÿ”น He implemented economic reforms under two key policies:

Perestroika (เคชुเคจเคฐ्เคฐเคšเคจा) – Economic restructuring ๐Ÿ“Š๐Ÿ”ง

Glasnost (เค–ुเคฒाเคชเคจ) – Political openness ๐Ÿ—ฃ️๐Ÿ“ข

❇️ Dissolution of the Soviet Union (1991) ⚡๐Ÿ“œ

๐Ÿ”น In 1991, under the leadership of Boris Yeltsin, countries from Eastern Europe, Russia, Ukraine, and Belarus declared the end of the Soviet Union. ๐Ÿšจ๐Ÿ›️

๐Ÿ”น This led to the formation of the Commonwealth of Independent States (CIS) and the emergence of 15 new independent nations. ๐ŸŒ๐Ÿ—บ️

๐Ÿ’ฅ This marked the official end of the Cold War and the fall of the Soviet superpower! ๐Ÿš€๐Ÿ“‰



❇️ Causes of the Dissolution of the Soviet Union ⚡๐Ÿ“‰

๐Ÿ”น Couldn’t fulfill people's aspirations (เค†เค•ांเค•्เคทा) ๐Ÿšซ๐Ÿ’ฐ

๐Ÿ”น Bureaucratic control (เคจौเค•เคฐเคถाเคนी) weakened efficiency ๐Ÿข๐Ÿ”—

๐Ÿ”น Poor governance (เคถाเคธเคจ) by the Communist Party ๐Ÿ›️⚠️

๐Ÿ”น Overinvestment in Eastern Europe (เคชूเคฐ्เคตी เคฏूเคฐोเคช) ๐ŸŒ๐Ÿ’ธ

๐Ÿ”น False progress reports (เค—เคฒเคค เคœाเคจเค•ाเคฐी) ๐Ÿ“ข❌

๐Ÿ”น Excessive military spending (เคธैเคจ्เคฏ เค–เคฐ्เคš) ☢️๐Ÿ’ฐ

๐Ÿ”น Lagging in technology (เคช्เคฐौเคฆ्เคฏोเค—िเค•ी) ๐Ÿ—️๐Ÿšง

๐Ÿ”น Russia’s dominance (เคช्เคฐเคงाเคจเคคा) over other republics ๐Ÿ‡ท๐Ÿ‡บ⚖️

๐Ÿ”น Opposition to Gorbachev’s reforms (เคธुเคงाเคฐ) ๐Ÿšซ๐Ÿ”„

๐Ÿ”น Economic stagnation (เคฎंเคฆी) & shortage of goods ๐Ÿ“‰๐Ÿ›’

๐Ÿ”น Rise of nationalism (เคฐाเคท्เคŸ्เคฐเคตाเคฆ) and independence movements ๐Ÿšฉ๐Ÿ—บ️

๐Ÿ”น Authoritarian rule (เคคाเคจाเคถाเคนी) ๐Ÿ›️❌



❇️ Consequences of the Dissolution of the Soviet Union ๐ŸŒ⚡

๐Ÿ”น End of Cold War (เคถीเคคเคฏुเคฆ्เคง) ๐Ÿ•Š️ – The long rivalry between the USA & USSR ended.

๐Ÿ”น Collapse of the Second World (เคฆूเคธเคฐी เคฆुเคจिเคฏा) ๐ŸŒ๐Ÿ“‰ –communist bloc disintegrated.

๐Ÿ”น Rise of a Unipolar World (เคเค•เคง्เคฐुเคตीเคฏ เคตिเคถ्เคต) ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‘‘ – The USA emerged as the sole superpower.

๐Ÿ”น End of Arms Race (เคนเคฅिเคฏाเคฐों เค•ी เคนोเคก़) ☢️๐Ÿšซ – Nuclear tensions reduced globally.

๐Ÿ”น Breakup of the Soviet Bloc (เคธोเคตिเคฏเคค เค–ेเคฎे เค•ा เค…ंเคค) ๐Ÿ›️⚡ – USSR split into 15  nations.

๐Ÿ”น Rise of Global Financial Institutions (เค…ंเคคเคฐเคฐाเคท्เคŸ्เคฐीเคฏ เคธंเคธ्เคฅाเคँ) ๐Ÿ’ฐ๐Ÿฆ – WB & IMF gained influence.

๐Ÿ”น Russia Became the Successor (เค‰เคค्เคคเคฐाเคงिเค•ाเคฐी) ๐Ÿ‡ท๐Ÿ‡บ – Russia inherited USSR’s global position.

๐Ÿ”น Shift in Power Balance (เคถเค•्เคคि เคธंเคคुเคฒเคจ) ⚖️๐Ÿ”„ – Global politics saw a major transformation.

๐Ÿ”น Decline of Socialist Ideology (เคธเคฎाเคœเคตाเคฆ) ❓๐Ÿ“‰ – Capitalism & liberalism became dominant.

๐Ÿ”น Adoption of Shock Therapy (เคถॉเค• เคฅेเคฐेเคชी) ⚡๐Ÿข – Soviet states moved towards free-market

๐Ÿ”น Growth of Liberal Democracy (เคฒोเค•เคคंเคค्เคฐ) ๐Ÿ—ณ️๐Ÿ“ˆ – Democracy gained wider acceptance worldwide.



❇️ Impact of Soviet Dissolution on Developing Countries like India ๐Ÿ‡ฎ๐Ÿ‡ณ๐ŸŒ

๐Ÿ”น Increased U.S. Influence (เค…เคฎेเคฐिเค•ी เคช्เคฐเคญाเคต) ๐Ÿ‡บ๐Ÿ‡ธ – America got more opportunities to interfere in domestic politics.

๐Ÿ”น Setback to Communist Ideology (เค•เคฎ्เคฏुเคจिเคธ्เคŸ เคตिเคšाเคฐเคงाเคฐा) ❌๐Ÿ”ด – Communism lost its global strength.

๐Ÿ”น U.S. Dominance in Global Organizations (เคตैเคถ्เคตिเค• เคธंเค—เค เคจ) ๐Ÿฆ๐ŸŒ – America gained more control over IMF & World Bank.

๐Ÿ”น Rise of MNCs in Developing Nations (เคฌเคนुเคฐाเคท्เคŸ्เคฐीเคฏ เค•ंเคชเคจिเคฏाँ) ๐Ÿข๐Ÿ’ฐ – Multinational companies entered India & other developing countries freely.



❇️ Unipolar World (เคเค•เคง्เคฐुเคตीเคฏ เคตिเคถ्เคต) ๐ŸŒ

๐Ÿ”น One Superpower Dominates ๐ŸŒŸ – After 1991, the world had only one superpower – the USA.

๐Ÿ”น No Rival to U.S. Power ๐Ÿ’ช – No country could challenge American dominance.

๐Ÿ”น Rise of Capitalist Economy ๐Ÿ’ฐ๐Ÿ“ˆ – Capitalism spread globally as socialism weakened.

๐Ÿ”น Unmatched U.S. Military Strength ๐Ÿš€⚔️ – America had superior military technology & spending.

๐Ÿ”น Control Over Global Institutions ๐Ÿฆ๐ŸŒ – IMF & World Bank came under U.S. influence.

๐Ÿ”น Cultural Influence ๐ŸŽญ๐Ÿ›️ – American brands like Jeans, Coke, and Pepsi spread worldwide.



❇️ Shock Therapy (เคถॉเค• เคฅेเคฐेเคชी) ⚡๐Ÿฆ

๐Ÿ”น Meaning ๐Ÿ’ฅ – "Shock Therapy" refers to a sudden transition from communism to capitalism under IMF & World Bank guidance after the USSR's collapse.

❇️ Features of Shock Therapy ๐Ÿ›️๐Ÿ’ฐ

๐Ÿ”น Privatization of State Property ๐Ÿข➡️๐Ÿ‘จ‍๐Ÿ’ผ – Government assets were sold to private individuals.

๐Ÿ”น Dismantling of Collective Farms ๐ŸŒพ๐Ÿšœ – Communal farms were turned into private farms.

๐Ÿ”น Adoption of Free Market Economy ๐Ÿ“ˆ๐ŸŒ – Trade barriers were removed, encouraging open markets.

๐Ÿ”น Currency Convertibility ๐Ÿ’ฑ – Local currencies became exchangeable with international ones.

๐Ÿ”น Integration with Western Economies ๐Ÿฆ๐Ÿ‡บ๐Ÿ‡ธ – Former USSR nations linked their economies with the West.

๐Ÿ”น No Alternative to Capitalism ❌๐Ÿ”ด – Socialism was completely abandoned.



❇️ Results of Shock Therapy ⚡๐Ÿ“‰

๐Ÿ”น Total Failure ❌ – Russia’s industrial system collapsed.

๐Ÿ”น Currency Devaluation ๐Ÿ’ฑ⬇️ – The Russian Ruble lost its value.

๐Ÿ”น End of Social Welfare ๐Ÿฅ๐Ÿšซ – Government welfare schemes were abolished.

๐Ÿ”น Loss of Subsidies ๐Ÿ’ธ – Most people became poor as state support ended.

๐Ÿ”น Mass Privatization ๐Ÿญ➡️๐Ÿ’ฐ – 90% of industries were sold cheaply, known as the “Biggest Garage Sale” in history.

๐Ÿ”น Economic Inequality ๐Ÿ“Š⚠️ – The gap between rich & poor widened drastically.

๐Ÿ”น Food Crisis ๐ŸŒพ๐Ÿฝ️ – Shortage of essential goods led to suffering.

๐Ÿ”น Rise of Mafia Groups ๐Ÿ”ซ๐Ÿ’ผ – Criminal organizations gained power.

๐Ÿ”น Authoritarian Rule ๐Ÿ›️๐Ÿ—ณ️ – Weak parliament, strong president → dictatorship tendencies.



❇️ The "Garage Sale" ๐Ÿญ๐Ÿ’ธ

๐Ÿ”น Shock Therapy caused economic collapse in former communist nations, especially in Russia.

๐Ÿ”น 90% of industries were sold to private companies at extremely low prices.

๐Ÿ”น As market forces (instead of government planning) controlled the economy, industries collapsed.

๐Ÿ”น This massive sell-off is known as "The Biggest Garage Sale in History" ๐Ÿ”ฅ.



⚔️ Conflict & Tension Zones ๐ŸŒ

๐Ÿ”น Many former Soviet republics faced conflicts and foreign interference.
๐Ÿ”น Chechnya & Dagestan in Russia witnessed violent separatist movements.
๐Ÿ”น Czechoslovakia peacefully split into Czech Republic & Slovakia.

๐ŸŒ Balkan Region

๐Ÿ”น Yugoslavia disintegrated due to civil war.
๐Ÿ”น Bosnia-Herzegovina, Slovenia, and Croatia declared independence.

๐ŸŒŠ Baltic Region

๐Ÿ”น Lithuania declared independence in 1990.
๐Ÿ”น Estonia, Latvia, and Lithuania became UN members (1991) and joined NATO (2004).

⛽ Central Asia

๐Ÿ”น Tajikistan faced civil war for 10 years (until 2001).
๐Ÿ”น Azerbaijan, Armenia, Ukraine, Kyrgyzstan, Georgia also faced conflicts.
๐Ÿ”น This region, rich in oil reserves, became a battleground for global powers & oil companies. ๐Ÿ”ฅ



India & Former Communist Countries ๐Ÿค

๐Ÿ”น Strong ties with former communist nations, especially Russia.
๐Ÿ”น Both nations support a multipolar world ๐ŸŒ.
๐Ÿ”น Common interests: coexistence, collective security, sovereignty, independent foreign policy, UN strengthening & democracy.

๐Ÿค India-Russia Relations

๐Ÿ”น 2001: Signed 80 bilateral agreements; India buys Russian weapons ๐Ÿ›ก️.
๐Ÿ”น Imports oil from Russia & collaborates in nuclear & space programs ๐Ÿš€.
๐Ÿ”น Expanding energy imports from Kazakhstan & Turkmenistan ⛽.
๐Ÿ”น 2016 BRICS Summit (Goa): PM Modi & President Putin focused on defense, nuclear energy, space & economic growth ๐Ÿ“ˆ



๐Ÿ”— ๐Ÿ“š Related Posts:


❓ ๐Ÿ™‹‍♂️ FAQs – End of Bipolarity (Chapter 1)

Q1. What does ‘End of Bipolarity’ mean in Political Science?
A: It refers to the collapse of the Soviet Union in 1991, ending the Cold War era of two superpowers – USA and USSR.

Q2. What caused the disintegration of the USSR?
A: Economic crisis, lack of political freedom, rise of nationalism in Soviet Republics, and Gorbachev’s reforms.

Q3. How did the end of bipolarity affect world politics?
A: It led to the rise of a unipolar world dominated by the USA and emergence of new power blocs like the EU and China.

Q4. What is Gorbachev’s role in the USSR’s collapse?
A: His policies of Glasnost (openness) and Perestroika (restructuring) weakened the Communist Party's control.

Q5. What replaced the USSR after its collapse?
A: 15 independent republics including Russia, Ukraine, and the Baltic States.





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