Geopolitical Groupings & Country Facts

Why This Chapter Matters

Every SSC CGL, CHSL, and RRB NTPC paper carries at least one or two questions from this exact basket: "Which country is NOT a G7 member?", "How many countries are landlocked?", "Which is the largest country by area?" These are high-return questions because the facts are fixed, well-documented, and asked on repeat across years. You are not memorising opinion here, you are memorising settled numbers.

This chapter pulls together the groupings and rankings that examiners love because they are easy to verify and easy to twist into confusing options. The single biggest mistake aspirants make is mixing up overlapping clubs, thinking G7 and G20 are just "small G7 and big G7" with the same members, or assuming every landlocked country is poor and small (Kazakhstan alone is bigger than all of Western Europe). Keep the groupings separate in your head as different rooms with different guest lists, and this chapter becomes one of the easiest scoring zones in the whole geography paper.

1. G7 — The Group of Seven

The G7 is a club of seven of the world's most industrially advanced economies that meets annually to coordinate on economic policy, security, and global crises. Its seven members are the United States, United Kingdom, Canada, France, Germany, Italy, and Japan. The European Union also attends and participates but is not counted as a member country.

Exam trap: Russia was part of this group from 1998 to 2014 when it was called the G8. It was suspended after the annexation of Crimea, and the group reverted to G7. If a question mentions "G8" as a currently active group, it is testing whether you know this history, and Russia is not currently a member of any G7-linked body.

Think of the G7 as the senior staff room of the world economy, a small, fixed table where only the old industrial powers get a permanent chair. No emerging economy, however large, sits there. That is precisely why the G20 exists.

2. G20 — The Group of Twenty

The G20 was created in 1999, originally at the finance-minister level, and became a leaders' summit after the 2008 global financial crisis showed that a small club of rich nations could not manage a crisis that involved everyone. It has 19 countries plus the European Union and the African Union (the African Union joined as a permanent member in 2023, during India's G20 presidency).

The 19 countries are: Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Turkey, United Kingdom, and United States.

India hosted the G20 summit in 2023 in New Delhi, under the theme "Vasudhaiva Kutumbakam" (One Earth, One Family, One Future). This is a favourite exam fact because it is recent, patriotic, and specific.

Exam trap: Students often think G20 = G7 + 13 more random countries. It does not work that way. The G20 was built to represent roughly 85% of world GDP and two-thirds of world population, mixing developed and developing economies. Notice that Spain is a permanent guest at G20 summits but not a formal member, a detail examiners like to test.

Memory hook: For G7 members, remember "UK Feeds Canadians Italian Jam Gently" — United Kingdom, France, Canada, Italy, Japan, Germany (the last letter stands in for the US, which you will rarely forget anyway since it is the most obvious member).

3. The Commonwealth of Nations

The Commonwealth is a voluntary association of 56 member states, almost all of them former territories of the British Empire, though a few nations with no historical British tie have joined in recent years (Rwanda in 2009 and Mozambique in 1995, neither of which was ever a British colony, and Gabon and Togo joined in 2022). Its symbolic head is the British monarch, currently King Charles III, but this role is largely ceremonial. The Commonwealth Secretariat is headquartered in London.

India is a founding member and remains one of the largest countries in the group by population. Pakistan has been suspended from the Commonwealth multiple times over military coups, most recently readmitted in 2004 after a 2002 suspension. Zimbabwe withdrew in 2003 after being suspended over land reform and election issues; it applied to rejoin in 2018 but remains outside the Commonwealth, with its bid formally rejected by member states as recently as December 2024.

Exam trap: Republics can be Commonwealth members without recognising the British monarch as their own head of state. India itself is a republic and a Commonwealth member simultaneously. Do not assume Commonwealth membership means allegiance to the British Crown as a country's own head of state.

You can picture the Commonwealth like an old school alumni association. One old student, Pakistan, had its membership card suspended for bad behaviour and was later reinstated, while another, Zimbabwe, walked out entirely and is still trying to get back in. A few new members (Rwanda, Gabon) never attended the original school but were let in anyway because they wanted access to the network.

4. Landlocked Countries of the World

A landlocked country has no coastline and no direct access to an open sea. There are 44 landlocked countries in the world (some counts vary from 43-45 depending on how partially recognised territories are treated, but 44 is the standard exam figure). This is a heavily tested list because it produces easy "identify the odd one out" questions.

Landlocked countries are concentrated in three belts: Central Asia (Kazakhstan, Uzbekistan, Turkmenistan, Kyrgyzstan, Tajikistan), landlocked Europe (Switzerland, Austria, Hungary, Czech Republic, Slovakia, Luxembourg, Liechtenstein, Belarus, Moldova, Serbia, North Macedonia, Andorra, San Marino, Vatican City), and landlocked Africa, which has the highest concentration of any continent, with countries like Chad, Niger, Mali, Zambia, Zimbabwe, Uganda, Rwanda, Burundi, Malawi, Botswana, Lesotho, Eswatini, Ethiopia, South Sudan, and Central African Republic.

Kazakhstan is the largest landlocked country in the world by area, so large that it alone spans two continents (Europe and Asia). At the other extreme, Vatican City and San Marino are landlocked microstates entirely surrounded by Italy.

There are also "doubly landlocked" countries, meaning they are surrounded entirely by other landlocked countries, so even reaching the sea requires crossing two borders. There are only two such countries in the world: Liechtenstein (surrounded by Switzerland and Austria) and Uzbekistan (surrounded by five landlocked or partially landlocked neighbours in Central Asia). This is a favourite trick question because most students have never heard the term until they meet it in a paper.

Exam trap: Ethiopia became landlocked only in 1993, when Eritrea gained independence and took the coastline with it. Before that, Ethiopia had access to the Red Sea. If a question asks which African country lost its coastline due to another nation's independence, the answer is Ethiopia.

Memory hook: For doubly landlocked countries, just remember "Liechtenstein and Uzbekistan, locked twice over", there are genuinely only two, so once you fix these two names you will never need a mnemonic for a longer list.

5. Island Nations of the World

An island nation is a country whose territory consists entirely, or almost entirely, of islands, with no land border shared with any other country. Examples span every ocean: Sri Lanka, Maldives, Japan, Philippines, Indonesia, Madagascar, New Zealand, Iceland, Cuba, Jamaica, Fiji, and the United Kingdom (an island nation despite being a major continental power).

Indonesia is the world's largest island country by both area and population, made up of over 17,000 islands. Maldives is the lowest-lying country in the world, with an average ground level of just about 1.5 metres above sea level, making it the country most frequently cited in exam questions about climate change and rising sea levels.

Exam trap: Students often confuse "island nation" with "archipelago nation". Every archipelago nation (many islands, like Indonesia or the Philippines) is technically an island nation, but not every island nation is a large archipelago (Iceland is a single major island). Both terms can appear as answer options in the same question, so read carefully whether the question wants "no land border" or "made of many islands".

Think of an island nation as a house with no shared wall, no next-door neighbour to argue with over a fence. That is exactly why island nations dominate lists of the world's most peaceful countries in global indices, they simply have fewer land border disputes to fight.

6. Largest and Smallest Countries — By Area

Ranking by land area, the giants and the tiny states both get tested equally.

The top five largest countries by area are Russia, Canada, United States, China, and Brazil, in that order. Russia alone spans about 17.1 million square kilometres, nearly twice the size of Canada, the second largest, and it stretches across 11 time zones.

At the opposite end, Vatican City is the smallest country in the world by area, at just about 0.44 square kilometres, smaller than most large parks. It is followed by Monaco and Nauru among the smallest sovereign states.

Exam trap: Do not confuse "smallest country" (Vatican City, by area) with "smallest country by population" if a question specifically asks about population, since the ranking flips slightly depending on which metric is used. Always check whether the question says "area" or "population" before answering.

7. Largest and Smallest Countries — By Population

By population, the ranking looks completely different from the area ranking, and this contrast is exactly what examiners exploit.

India is the most populous country in the world, having overtaken China in 2023 according to United Nations estimates. China is second, followed by the United States as the third most populous country. Indonesia and Pakistan round out the top five.

At the small end, Vatican City is again the smallest country by population, with under 1,000 residents, most of them clergy and Swiss Guard personnel rather than ordinary citizens.

Exam trap: Russia is the largest country by area but does not even make the top five by population. Canada, second largest by area, has a population smaller than many Indian states. Area and population are independent facts, never assume one predicts the other.

8. Countries That Changed Names

Name changes are a rich source of exam questions because they test current-affairs awareness layered on top of static geography.

Old Name	New Name	Year of Change
Burma	Myanmar	1989
Ceylon	Sri Lanka	1972
Persia	Iran	1935
Siam	Thailand	1939
Rhodesia	Zimbabwe	1980
Swaziland	Eswatini	2018
Czechoslovakia	Czech Republic (Czechia) & Slovakia	1993 (split into two)
Dutch East Indies	Indonesia	1949
Zaire	Democratic Republic of Congo	1997
North Macedonia (formerly Macedonia)	North Macedonia	2019
Cape Verde	Cabo Verde	2013
Holland (common name)	The Netherlands (official rebranding)	2020

Exam trap: Czechoslovakia did not just rename itself, it split into two separate countries, the Czech Republic and Slovakia, in a peaceful split known as the "Velvet Divorce". This is different from every other row in the table, where one country simply adopted a new name for the same territory. If an option says "Czechoslovakia became Czechia", mark it wrong, because Slovakia became an independent country too.

Memory hook: For the four classic colonial-era renames, remember the phrase "Burma Ceylon Persia Siam, all changed names, all the same game", a reminder that Myanmar, Sri Lanka, Iran, and Thailand are the four names asked most often in this category.

9. Overlapping Memberships — The Cross-Reference Trap

A single country can belong to G20, Commonwealth, and be a landlocked or island nation simultaneously, and examiners love building composite questions out of this overlap. India is a G20 member and a Commonwealth member but is neither landlocked nor an island nation. The United Kingdom is a G7 member, a G20 member, and an island nation, and heads the Commonwealth, making it the single country that appears in the most groupings covered in this chapter. Australia is a G20 member, a Commonwealth member, and technically the world's largest island as well as a continent, a fact examiners exploit because students forget a country can be an island and a continent at once.

Build a mental grid rather than memorising groupings in isolation. When you see a country name in an MCQ, run it through each club in your head: G7? G20? Commonwealth? Landlocked? Island? You will usually eliminate two or three wrong options in seconds this way.

Quick Revision — One-Line Facts

• G7 has 7 members: US, UK, Canada, France, Germany, Italy, Japan.
• Russia was removed from G8 back to G7 in 2014 after the Crimea annexation.
• G20 has 19 countries plus the European Union and African Union (AU joined in 2023).
• India hosted the G20 summit in 2023 in New Delhi under "Vasudhaiva Kutumbakam".
• The Commonwealth has 56 member states, headquartered in London.
• The Commonwealth's symbolic head is King Charles III.
• Rwanda and Mozambique joined the Commonwealth despite no British colonial history.
• Pakistan has been suspended and readmitted to the Commonwealth more than once.
• There are 44 landlocked countries in the world.
• Kazakhstan is the largest landlocked country by area.
• Liechtenstein and Uzbekistan are the only two "doubly landlocked" countries.
• Ethiopia became landlocked in 1993 when Eritrea became independent.
• Vatican City and San Marino are landlocked microstates surrounded by Italy.
• Indonesia is the largest island country by both area and population.
• Maldives is the lowest-lying country in the world, average height about 1.5 metres.
• The United Kingdom is an island nation despite being a former global empire.
• Russia is the largest country in the world by area, at about 17.1 million square kilometres.
• Russia spans 11 time zones.
• Canada is the second largest country by area, United States third, China fourth, Brazil fifth.
• Vatican City is the smallest country by both area and population.
• India is the most populous country in the world, having overtaken China in 2023.
• China ranks second and the United States ranks third in world population.
• Burma became Myanmar in 1989.
• Ceylon became Sri Lanka in 1972.
• Persia became Iran in 1935.
• Siam became Thailand in 1939.
• Rhodesia became Zimbabwe in 1980.
• Swaziland became Eswatini in 2018.
• Czechoslovakia split into the Czech Republic and Slovakia in 1993, it did not merely rename itself.
• Zaire became the Democratic Republic of Congo in 1997.
• Spain attends G20 summits as a permanent guest, not a formal member.

Memory Tables

Table 1 — G7 vs G20 at a Glance

Feature	G7	G20
Number of country members	7	19 (plus EU and AU)
Founded	1975	1999 (leaders' summit from 2008)
India a member?	No	Yes
Russia a member?	No (removed 2014)	Yes
2023 host	Japan (Hiroshima)	India (New Delhi)
Focus	Advanced economies coordination	Broader global economic governance

Table 2 — Extreme Countries Cheat Sheet

Category	Country	Key Number
Largest by area	Russia	~17.1 million sq km
Smallest by area	Vatican City	~0.44 sq km
Most populous	India	Overtook China in 2023
Smallest by population	Vatican City	Under 1,000
Largest landlocked country	Kazakhstan	~2.7 million sq km
Largest island country	Indonesia	~17,000+ islands
Lowest-lying country	Maldives	~1.5 metres average
Number of landlocked countries	—	44
Number of doubly landlocked countries	Liechtenstein, Uzbekistan	2

Table 3 — Countries That Changed Names (Quick Lookup)

Old Name	New Name
Burma	Myanmar
Ceylon	Sri Lanka
Persia	Iran
Siam	Thailand
Rhodesia	Zimbabwe
Swaziland	Eswatini
Zaire	DR Congo
Cape Verde	Cabo Verde

Practice MCQs

Q1. How many permanent country members does the G7 currently have? (a) 5 (b) 7 (c) 8 (d) 9

Q2. Which country was removed from the G7 (then called G8) in 2014? (a) China (b) Russia (c) Turkey (d) Brazil

Q3. Where is the headquarters of the Commonwealth Secretariat located? (a) New York (b) Geneva (c) London (d) Paris

Q4. Which is the largest country in the world by land area? (a) Canada (b) China (c) Russia (d) United States

Q5. Which is the smallest country in the world by both area and population? (a) Monaco (b) Nauru (c) San Marino (d) Vatican City

Q6. Burma officially changed its name to which country? (a) Myanmar (b) Thailand (c) Cambodia (d) Laos

Q7. India hosted the G20 summit in which city in 2023? (a) Mumbai (b) New Delhi (c) Bengaluru (d) Chennai

Q8. Which African country became landlocked in 1993 after another nation's independence? (a) Sudan (b) Chad (c) Ethiopia (d) Somalia

Q9. Which is the largest country in the world by population as of the most recent UN estimates? (a) China (b) United States (c) India (d) Indonesia

Q10. Which is the largest island country in the world by area? (a) Japan (b) Philippines (c) Madagascar (d) Indonesia

Q11. Ceylon changed its name to Sri Lanka in which year? (a) 1948 (b) 1965 (c) 1972 (d) 1980

Q12. Which former country split into the Czech Republic and Slovakia in 1993? (a) Yugoslavia (b) Czechoslovakia (c) Soviet Union (d) East Germany

Q13. Which of the following are the only two "doubly landlocked" countries in the world? (a) Switzerland and Austria (b) Liechtenstein and Uzbekistan (c) Nepal and Bhutan (d) Mongolia and Kazakhstan

Q14. Which country is cited most often as an example of a nation threatened by rising sea levels due to its extremely low average elevation? (a) Sri Lanka (b) Maldives (c) Seychelles (d) Fiji

Q15. Which country is simultaneously a G7 member, a G20 member, an island nation, and the ceremonial head of the Commonwealth? (a) France (b) Japan (c) United Kingdom (d) Canada

Answer Key

Q	Answer	Reason
1	(b) 7	G7 has exactly seven country members: US, UK, Canada, France, Germany, Italy, Japan.
2	(b) Russia	Russia was suspended from the G8 in 2014 after annexing Crimea, reverting the group to G7.
3	(c) London	The Commonwealth Secretariat, the administrative body of the 56-member group, is based in London.
4	(c) Russia	Russia covers about 17.1 million square kilometres, spanning 11 time zones, the largest of any country.
5	(d) Vatican City	At roughly 0.44 square kilometres and under 1,000 residents, it is smallest by both measures.
6	(a) Myanmar	Burma was officially renamed Myanmar in 1989 by its military government.
7	(b) New Delhi	India's 2023 G20 presidency culminated in the New Delhi summit under the theme "Vasudhaiva Kutumbakam".
8	(c) Ethiopia	Ethiopia lost its Red Sea coastline in 1993 when Eritrea became an independent country.
9	(c) India	UN estimates from 2023 place India ahead of China as the world's most populous country.
10	(d) Indonesia	Indonesia's more than 17,000 islands make it the largest island nation by both area and population.
11	(c) 1972	Ceylon adopted the name Sri Lanka in 1972 when it became a republic.
12	(b) Czechoslovakia	Czechoslovakia peacefully split into two separate countries in 1993, unlike simple renames elsewhere in this chapter.
13	(b) Liechtenstein and Uzbekistan	These are the only two countries surrounded entirely by other landlocked countries.
14	(b) Maldives	Maldives has an average elevation of about 1.5 metres, making it the world's lowest-lying country.
15	(c) United Kingdom	The UK sits in G7, G20, is an island nation, and its monarch is the Commonwealth's ceremonial head, more overlapping memberships than any other country in this chapter.