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... read more You know it will be on the list! Plus, America has one of the strongest militaries in the world, along with the United Kingdom, South Korea, China, and Russia, among others.
Additionally, America is a global superpower, so the odds of beating it in a fight are extremely low - lower than winning the lottery three times in a row, getting struck by lightning, and surviving a nuclear winter. So, good luck!
I think one big thing about the U.S. is that even if you are able to cross the Pacific and Atlantic Oceans to get to us, and even if you defeat all our allies, and even if you somehow defeat our military, you would still lose.
Want to know why? America's citizens are fighters. Most of them would do anything for their country. It's simply in their blood, ever since the beginning.
2 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,... read more Just like Australia, Canada is hard to invade because of its geography. However, instead of hot deserts and deadly animals, you'll have to go through many feet of snow.
Canada is very close allies with the United States, so unless you want to deal with two strong nations, I suggest you raid an island or yourself. Canada is full of snow, so you have to navigate through very cold weather, huge piles of snow, and many more obstacles that could end the lives of many of your men.
Canada is not to be messed with. They have the protection of the U.S., Britain, France, and more. They are liked by a lot of countries.
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... read more Just like Canada, Russia has lots of snow. So, if you want to invade Russia, you'd better stock up on winter clothes. Russia also has one of the most powerful militaries in the world, along with NATO, the U.S., China, and Australia.
Russia is very powerful. They've only lost three wars: World War I, the Russo-Japanese War, and the Russian Civil War against the Red Army.
So, invading Russia in a nutshell:
Someone: Raid Russia.
Also them: Faces tons of snow and cold weather.
Army: Surrenders.
Dictator: No, that's not how you're supposed to play the game!
People have tried to conquer Russia and they have failed, mainly because of the climate and the adaptability of its people.
4 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... read more Australia is difficult to invade because of its geography. It is home to a variety of deserts and deadly animals like the Sydney funnel-web spiders.
Not only does that give Australia a huge advantage and a secret place to plan their attacks, it's basically pointless to raid this country unless you want to lose like a third of your men to deadly animals and the heat of the deserts.
5 China
China, officially known as the People's Republic of China, is a country located in East Asia. It is the world's second most populous country, boasting a population of more than 1.4 billion. China spans five geographical time zones and shares its borders with 14 countries, making it second only to Russia... read more China should not be on our list of countries to invade. They have tons of nukes and are catching up to America in becoming the next superpower.
China also has a very large population, so you'll be dealing with over 1 billion people, which is more than the United States.
6 South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims... read more Also on this list, South Korea shouldn't be messed with. They have advanced technology and spend a lot of money on their large military.
South Korea is also a very close ally to America. So, not only will you face one country with advanced technology and a powerful military, but you will also face a superpower. So, go raid someone else.
7 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... read more Japan is also a country in East Asia, like South Korea, China, and Russia. They are a very close ally to the U.S., so messing with them would end very badly.
This country ranks in the top 10 on the list of countries considered for the Global Firepower Index (GFP). Good luck.
They have earthquakes, so you need to have a lot of engineers.
8 Vietnam
Vietnam, officially the Socialist Republic of Vietnam, is the easternmost country on the Indochina Peninsula in Southeast Asia. As a Vietnamese, I know that Vietnam was able to defeat many large countries in the past. Although Vietnam is small, they are not as weak as you might think.
Vietnam is also a strong country and managed to make America surrender during the Vietnam War. They also managed to defeat China and gained freedom from France.
9 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... read more France may surrender and be likened to that one kid who pees his/her pants, but France is not to be messed with. They have one of the strongest navies in the world.
Additionally, France ranks #1 among countries with the most military victories, following the powerful United Kingdom and the famous/infamous United States.
10 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,... read more Brazil is very difficult to conquer because of the Amazon. An invading army would likely perish attempting to take over the Amazon, and the capital is also situated well inland.
Way too hot and polluted. It would take an eternity and you would need to cleanse the water.
The Contenders
11 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... read more They are self-supporting and have the ocean all around except for South Korea.
12 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... read more
13 United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly shortened to United Kingdom, UK or Britain is a Sovereign State located of the Northwestern coast of Europe. It is a Parliamentary Constitutional Monarchy currently lead by Monarch Queen Elizabeth II and its current prime minister is... read more The United Kingdom's Navy is formidable and ranks #2 in countries with the most military victories. Additionally, their nation is composed of Scotland, Northern Ireland, Wales, and England.
So, instead of fighting one country like the others on the list, you're fighting four countries. Even Uncle Sam himself wouldn't want to mess with the United Kingdom.
14 India
India, officially known as the Republic of India, is a country located in South Asia. It is the seventh-largest country by area and the most populous country, with over 1.4 billion people. Additionally, it is the most populous democracy in the world... read more
15 Switzerland
Switzerland, officially the Swiss Confederation, is a federal republic in Europe. It consists of 26 cantons, and the city of Bern is the seat of the federal authorities... read more Mountains. Why did it have to be mountains?!
16 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... read more Not even the British and Soviets could take over this place. It's essentially Vietnam with mountains.
17 Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia. Ruled by the Dutch for over 300 years and Japan for 3 years and 6 months, the country gained independence in 1945, or exactly in 17th August 1945. Jakarta is the capital city, located in the island of Java. Major languages... read more
18 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.
19 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... read more Italy was able to defeat Albania, and their military is steadily growing.
20 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. Sri Lanka is backed by China and Russia, so don't even try invading it. You'll have to deal with two billion people, which is more than what India and Bhutan could muster.
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... read more
22 Poland
Poland, officially the Republic of Poland, is a country in Central Europe, bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast (a Russian exclave) and Lithuania to the north. With a population of approximately... read more In the past, Poland has been invaded countless times. However, they are now a U.S. ally. Poland even managed to defeat Russia after the First World War.
23 Finland
Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland across Estonia to the south. Finland covers an area of 338,455... read more
24 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... read more
25 Iran
Iran, also known as Persia, officially the Islamic Republic of Iran, is a sovereign state in Western Asia. The capital city is Teheran and the major city is also Tehran. The country's official language is Persian... read more Iran is mostly mountainous and very difficult to conquer. Just ask Iraq and the Ottomans.