Top 10 Hardest Countries to Conquer

Nations have always wanted more land. There have been weak countries that were taken over in 38 minutes, but some countries are big, strong, and can’t be conquered without the attacker’s nation being conquered instead. As for any commander in chief who wants to try their military against these countries, good luck. It will be hard, if not impossible. Of course, these can all theoretically be conquered, but it's not always a great idea to spend all your military on it.
The Top Ten
1 United States The United States of America, or the U.S.A. for short, is a federal republic composed of 50 states, 48 of them are contiguous states. There are two other states, Alaska and Hawaii, which are north and south of the contiguous states, respectively. The United States declared its independence from the British Empire in 1776 with the Declaration of Independence. They won their independence in 1783 with... read more

The United States of America is often the subject of ridicule from other developed nations. Take Pink Guy's "White Is Right", or Europeans and Australians criticizing the US Government for its controversial lack of gun control.
But when there is a crazy dictator, or another country is about to get conquered, the US Army comes in. A lot of the US taxpayers' money winds up in this country's military.
The US also has the first National Park in the world. In total, they have more than 400, each one vastly different from the other. With a land area, also comes geographical diversity, which is often annoying for invaders.
With people power, land area, and more gun power than people power, the USA really fits perfectly for a list like this.

The USA's army is the strongest in the entire world, and they have many strong allies, so taking them over would obviously be a bad idea. Even if they didn't have a strong millitary, it would still take forever. You have to endure the deserts of Arizona and the coldness of Alaska, the mountains of Montana and the tornadoes of Oklahoma. OK, maybe not the last part.

2 China China, officially the People's Republic of China, is a country in East Asia. It is the world's most populous country, with a population of more than 1.4 billion. China spans five geographical time zones and borders 14 countries, the second most of any country in the world after Russia. Covering an area of approximately 9.6 million square kilometers (3,700,000 sq mi), it is the world's third or fourth... read more

Some countries like Australia have a lot of land area, but not so many inhabitants. Others like Bangladesh lack land area, but they have the people power. China is one country that has both. They have more than 10 percent of the world's population, and are the 4th largest in physical area. Furthermore, with one of the largest economies in the world and industrial prowess, China is not an easy target.

Tibet is the main reason China is hard to invade, but even without Tibet, China is no easy target. This is mostly due to how strong China's millitary is, and how large China's economy is.

We have gone over japan, US, and the "eight allies" or something.
P.S. where is micronesia no one can conquer so many islands

3 Russia Russia, or the Russian Federation (RF), is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world by area, covering over 17,125,191 square kilometres (6,612,073 sq mi), and encompassing one-eighth of Earth's inhabitable landmass. Russia extends across eleven time zones and borders sixteen sovereign nations, the most of any country in the world... read more

One of Napoleon's and Hitler's biggest mistakes were to try taking over Russia. Russia is currently the biggest country in the world (by land area), and they have a ton of petroleum power like Saudi Arabia. Even if you try to go for Russia during summer, the Russians can hold off and easily fight back during winter, when the temperatures are around -20 degrees Celsius, which only the Russians are prepared for.

Napoleon and Hitler shouldn't have tried taking over Russia, and they are the largest country in the world. Oh, and Siberia, especially in winter. But even if you try going for Russia in summer, or even spring, Russia's strong military can still hold till winter, when the temperatures are about -20 degrees Celsius.

Same reason as the US, with the added bonus of it being so massive that it would take literal years to conquer.

4 Canada Canada is a country in North America that is next to the United States, and it's the 2nd largest country in the world by area (size is 9.985 million km²). This country has 10 provinces, and 3 territories. Canada became a dominion on July 1, 1867. Its 10 provinces are: Ontario, British Columbia, Quebec, Alberta, Newfoundland and Labrador, Nova Scotia, Saskatchewan, Manitoba, New Brunswick, and Prince... read more

Another one of these big countries is Canada, but they have another defense on them. Canada is surrounded by ocean, but the safest way to get at Canada is through the southern parts of the coast. However, Canada is friends with the United States, and the USA is known for its strong military and they often intervene in international conflicts. Canada, like North Korea is essentially like facing two countries instead of one.

Canada is the 2nd largest country, and with the USA allied with them, it is not going to be easy to invade them. What makes Canada even harder to invade is that their Northern part is basically a North American Siberia.

5 India India, officially the Republic of India, is a country in South Asia. It is the seventh-largest country by area, the second-most populous country (with over 1.2 billion people), and the most populous democracy in the world. Its capital is New Delhi. Some other major cities are Mumbai, Chennai, and Ahemdabad. The most spoken languages are Hindi and English, but there are 22 official Indian languages... read more

This one is not quite as obvious as some of the other countries on the list, but it's pretty much Afghanistan in the west, and Brazil in the east. India is a physically diverse nation, with many different environments, and a dense and population, which means it has a big military. And don't try taking the south of India because the coast is always full of submarines.

The only really easy way to invade a civilization in India is to do it by sea. You can't really use paratroopers, unless you drop them from a helicopter, and invading it by land is no small feat due to it basically being Arizona on the west, and Brazil on the east. And doing it by sea now is nearly impossible due to submarines.

6 Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan, is a landlocked country located at the crossroads of Central and South Asia. Referred to as the Heart of Asia, it is bordered by Pakistan to the east and south, Iran to the west, Turkmenistan to the northwest, Uzbekistan to the north, Tajikistan to the northeast, and China to the northeast and east. Occupying 652,864 square kilometers (252,072... read more

Many empires have tried to conquer Afghanistan, but hardly anyone succeeded. Afghanistan is a desert surrounded by the Hindu Kush, and the US is having a hard time there. Almost every empire that tries their armies against Afghanistan end up losing. This gives Afghanistan a potential nickname of "the graveyard of empires".

7 Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of 7,617,930 square kilometres (2,941,300 sq mi), Australia is the largest country by area in Oceania and the world's sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent,... read more

Australia is known for cities like Sydney, but only its coast is well populated and taken into consideration. Australia has an desert called the Outback in the middle of the continent, which will be very challenging for enemy armies. Furthermore, Australia is hard to get to, and will need a bigger army than navy to take over the Outback, and don't try cramming everything on to your naval ships.

Unless you want to deal with an additional army of spiders, kangaroos and emus, don't invade Australia. They also have a strong army just in case the emus, kangaroos and spiders don't do the trick.

Australia has force and it has its hard terrain. The biggest island and the smallest continent, it's hard to get to and you don't want to get on the country's bad side.

8 Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. At 8.5 million square kilometers (3,300,000 sq mi) and with over 214 million people, Brazil is the world's fifth-largest country by area and the sixth most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26... read more

You know, for a country known for parades every spring and thick, dense jungles... Yeah, good luck with the Amazon Rainforest. It is hard to navigate, and has a ton of dangerous, toxic predators that most armies are not prepared for. And because it's a mostly a RAINforest, armies are easy targets to get flooded out.

9 Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country on the Arabian Peninsula in Western Asia. It has a land area of about 2,150,000 km2 (830,000 sq mi), making it the fifth-largest country in Asia, the second-largest in the Arab world, and the largest in Western Asia. It is bordered more.
10 Germany Germany was formally united in 1871 under the initiative of Bismarck with King Wilhelm of Prussia as emperor. The previous 'Holy Roman Empire', basically a continuation of the empire of Charlemagne/Karl der Grosse was dissolved in 1806.

Some territory was lost after World War 1 and a lot more after World War 2, basically started by Hitler's Nazi dictatorship. Then the Soviets kept their zone... read more

I could find Germany hard to invade, they once had the German Empire, they were really strong, they could easily beat Poland in a war

The Contenders
11 Denmark Denmark is a Nordic country in Northern Europe. It is the most populous and politically central constituent of the Kingdom of Denmark, a constitutionally unitary state that includes the autonomous territories of the Faroe Islands and Greenland in the North Atlantic Ocean. European Denmark is the southernmost of the Scandinavian countries, lying southwest of Sweden, south of Norway, and north of Germany. more.

Denmark looks like an easy target on the map. And I wouldn't blame you. However, Denmark controls Greenland, more than 1,000,000 square kilometers of almost no resources, and it is very hard to survive in due to its cold temperatures. Denmark better not sell it off to the United States of America, or it will lose its place on our list

12 Japan Japan is an island country in East Asia in the Pacific Ocean. It lies off the eastern coast of the Asia Mainland (east of China, Korea, Russia) and stretching from the Sea of Okhotsk in the north to the East China Sea and near Taiwan in the southwest.

Japan has a huge capital city called Tokyo, other cities in Japan include Fukuoka, Hiroshima, Osaka, Nagoya and Sendai. It's close to South Korea, which is on the North West of it. It has a large population of 126.86 million people (Statistics Bureau of Japan. Retrieved April 27, 2016). more.

Invading an island is hard enough due to little supply, let alone when that island was one of the oldest civilizations and still hasn't been invaded. Heck, even the Mongols couldn't invade Japan, and all the Mongols really did was invade countries.
And now it's even harder to invade Japan due to how good their military is.

13 North Korea The Democratic People's Republic of Korea, also known as North Korea, is a country in Eastern Asia. Its capital is Pyongyang. It is currently ruled by the Juche leader Kim Jong-Un, after inheriting the title from his father, Kim Jong-Il, who in turn inherited it from his father, Kim Il-Sung.

North Korea's population as of February 18th, 2017 is 25,360,273.

North Korea is the third most... read more

If you ever try to fight North Korea, Kim Jong Un would literally bomb you with missiles

14 Mexico Mexico, officially the United Mexican States, is a federal republic located in North America. The country is located between the U.S. and Central America, and is known for its Pacific and Gulf of Mexico beaches and its diverse landscape of mountains, deserts, and jungles.
15 Bhutan Bhutan, officially the Kingdom of Bhutan, is a landlocked country in South Asia at the eastern end of the Himalayas. It is bordered by China to the north and India to the south. Nepal and Bangladesh are located in proximity to Bhutan but do not share a land border. The country has a population of over 754,000 and a territory of 38,394 square kilometers (14,824 sq mi) which ranks 133rd in terms of land area, and 160th in population. Bhutan is a constitutional monarchy with Vajrayana Buddhism as the state religion.

Like Switzerland, they are also safe from invasion as it's pointless to conquer them

16 France France, officially the French Republic, is a sovereign state comprising territory in western Europe and several overseas regions and territories. The European part of France, called metropolitan France, extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to more.
17 Italy Italy (Italian: Repubblica Italiana) is a sovereign state and unitary parliamentary republic in south-central Europe.

Italy covers an area of 301,338 km². With almost 62 million inhabitants, it is the third most populous EU member state. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Switzerland, Austria, Slovenia, San Marino, and Vatican City. The... read more
18 Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey more.
19 Turkey Turkey, officially the Republic of Turkey, is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is bordered by eight countries with Greece and Bulgaria to the northwest; Georgia to the northeast; Armenia, more.
20 Nepal Nepal, officially the Federal Democratic Republic of Nepal, is a sovereign state located in South Asia. more.
21 Israel Israel, officially the State of Israel, is a country in Western Asia. It is situated on the southeastern shore of the Mediterranean Sea and the northern shore of the Red Sea, and shares borders with Lebanon to the north, Syria to the northeast, Jordan to the east, and Egypt to the southwest; it is also bordered by the Palestinian territories of the West Bank and the Gaza Strip to the east and west,... read more

If you're surrounded by people who don't want you to exist, it's obvious that you must be tough as possible. Not only is their army powerful in the first place, but they also have protection from the USA, so invading them is no small feat.

They should be higher, considering you have to go through the States to even get to attempt your first move, in which you would fail utterly.

22 Vietnam Vietnam, officially the Socialist Republic of Vietnam, is the easternmost country on the Indochina Peninsula in Southeast Asia.

They never be defeated by US, China and Japan, France.

23 Pakistan Pakistan was established in 1947 and is located in South Asia. Islamabad is the capital city of Pakistan. Karachi, Lahore and Peshawar are other major cities of Pakistan. Urdu and English are official languages of Pakistan. World's second highest peak (K-2) and ninth highest peak (Nanga Parbat) are located in Pakistan.
24 Algeria Algeria, is a sovereign Arab & Amazigh country located in North Africa. Algerian peoples Speaks Arab and Tamzigh and some of them speaks French.Algiers is capital and most populous city in Algeria, located in the far north of the country. With an area of 2,381 741 square kilometres, Algeria is the tenth more.
25 Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka and known from the beginning of British colonial rule until 1972 as Ceylon, is an island country in South Asia near south-east India.

They're backed up by India, Russia, and China, so you'll have to fight them to fight Sri Lanka

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