The start of WWII was caused by the German invasion of Belgium, after they had signed a nonaggression pact them. France and Britain had just barely signed a treaty that would help Belgium in case of the German's attack. Russia had also signed a nonaggression pact with Germany, but that was later disregarded. The League of Nations did nothing to stop Hitler's rise to power, and his slow gobbling up of Europe. Italy eventually allied with Germany, as did Japan. The US only joined after Pearl Harbor.
The assassination of Archduke Franz Ferdinand and in time, it involved most of the world.
Everyone's back to trying to make a living in a peace time world.
World war 2 was a devastating time for all. Many countries, that wanted no part in the fighting and confusion unwillingly got sucked in the chaos. Countries such as the Phillipines.
Because it was a time of Colonial rule on a world wde front. The lack of Independence meant that even tiny countries had obligations that placed them in the conflict.
it is because it was the second time they have faught. Many countries did not want to fight again because they had peace treaty of versailles. The people that betrayed the treaty got in to trouble.
Which war? Probably because so many countries were involved and waging war at the same time for various and/or related reasons.
What was eventually to become the internet began in the USA in the 1960s. Much later other countries became involved, with connections being established across the Atlantic in the early 1970s. What we now know as the internet formally came into being in 1989, at which point many countries were involved. The World Wide Web started in the early 1990s. It began to really become popular in about 1995. Throughout all of this it isn't as straightforward to say when any given country became involved. The internet is spreading all the time.
Which Queen? There were many countries involved in WW2 and their rulers were involved in many ways. Queen Elizabeth, the current ruler of Great Britain, was at that time a young girl and drove an ambulance during the war.
At this time there are 196 countries in the world.
When Germany started World War 2 with the invasion of Poland, the main military players opposing Germany were Britain and France. Czechoslovakia and Austria had already been absorbed into Germany. The Soviet Union was involved for a short time as it also invaded Poland. And Finland allied with Germany in an effort to regain territory form the Soviet Union. In short order, most of the rest of Europe was involved (except Sweden, Switzerland, Spain and Portugal) as a result of being attached by Germany or of allying with Germany. Spain was involved in a civil war at the time. General Franco was supplied arms and troops by Germany and Italy befor WWII started proper. The first bombs dropped in anger from a plane were dropped on Spain by German aircraft.
World War I was started by the assasination of the Archduke of Austria-Hungary (Frances Ferdinand) which was caused by a terrorist group known as Black-Hand led by Slavs who wanted a Slavik state. This lead to allies of both countries involved, Austria Hungary and the accused country (Serbia), to have allies who were eager to fight, having developed new "modern" (at the time) weaponry.
0000 was the time thee world started !!!!