How many nations invole in world war 2?
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Wikipedia's article Participants in World War II lists them all and their level of participation. The combatants were the Allies namely Great Britain and its empire/Commonwealth, the US, USSR, France and China and others. It was opposed by the Axis led by Nazi Germany, Japan and Fascist Italy.
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World War I: 1914-1918\nWorld War II: 1939-1945
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World war III has yet to happen
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Wow. That list could be pretty long. Germany conquered most of Europe with a little help from Italy and France. Japan conquered a piece of China,  most of the Pacific coastal countries on the Asian continent and most of the island nations in the Pacific. And then the Allies conquered Germany, Italy, and Japan.\n\nYeah, that list could get pretty long.
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Axis Powers - Germany, Italy, Japan\n\nWorld War II was the last major conflict to involve the vast majority of mankind (62 million died in the war).\n\nThe Torah is the first five books of the Hebrew Bible, also known as the Books of Moses.\n\nSynagogue is a Jewish house of worship, similar to the Christian churches or the Moslem mosques.
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lets see now, germany bombing of dresden about 100,000 thousand, korea 2 million, vietnam 2.5 million, iraq so far 670 thousand and still counting.
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there are 193 countries
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http://en.wikipedia.org/wiki/World_War_II
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Some people believe we are already involved in World War III.  It is known as "the war on terror".  I believe this is a sort of World War.  Believe that or not, if it gets much bigger, it definately will be World War III.
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World War 3 started the day after sept 11th 2001. Nations all over the world, not just iraq and afganistan, are involved. Over a hundred nations are involved. The enemies fight overtly, and covertly, with bullets, bombs, and video tapes! Everyone thought ww3 would be fought with  nuclear weapons, its turns out its being fought with cnn broadcasts.
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same amount of nations in the world and 7 continents
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42 other countries from all around the world.
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Basically World World II was like a continuation of World World I. Essentially this is what happened. World War I starts (aka - The Great War pre WWII) and afterwards its like everyone took a break. I'm not joking either. It was like a pause for 20 years. In the early 1930's, Japan invaded China. China actually had the most amount of casualties, not Russia or Eastern Europe. \n\nMost countries blamed Germany and so Germany had many sanction and restrictions put on the country. Hitler played off of these emotions and blamed the Jewish population for all of Germany's problems. At this time, Hitler was also quickly moving up in the ranks and finally became Dictator. \n\nHitler then started annexing countries in the mid to left 1930's and every country began to appease him. After he took over Poland and much of France, it was too late. The non-aggression pact between Germany and Russia made Hitler essentially invulnerable because from Eastern Europe was essentially all his to take over minus Russia. (Hitler would later reneg on the non-agreesion pact)\n\nThe United States needed an excuse to get into WWII and they finally got one on June 6, 1941 - Pearl Harbor. \n\nAbout 6 million jews were killed and 6 million gypsies, homosexuals, etc were killed. \n\nIn China, about 20-25 million were killed.
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This is from memory so it's probably not complete, sorry.\nEngland, Spain, Barbary Coast States, Germany, Austria Hungary, Italy, Japan, North Viet Nam, Iraq.\n\nNorth Korea (US was part of UN forces).
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The World Wars are over.  Any country with enough military firepower to wage a global-scale war has sense enough to realize that those conflicts will escalate to nuclear conflicts with unacceptable consequences for all concerned.
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The exact amount of nations that are members of FIFA is 192 nations. Which are the ones who compete for the right to participate in the FIFA World Cup Tournament That's held every four years and allows 32 nations as it finalist to compete. Any Nation that is not a member of FIFA can not participate.
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there were 5 million military, 3 million civilian, a total of 8 million to the allies side. and 4 million military, 3 million civilian, a total of 7 million dead to the central powers of europe.