During WW2, European nations and the us - where the flu was endemic - sent troops (and supplies, etc.) to every continent but Antarctica (btw there are no permanent human residents of Antarctica soo). The combination of commerce and military movement spread the flu all around the world. Commerce continues to do the same thing today with other diseases, animals, etc.
According to Historians, one of the reasons the U.S. entered World War I was to stop the spread of German Imperialism. Another reason was to spread democracy globally and strengthen allied support.
Yes, it was fought on all continents of the world.
All of the continents, Europe, Asia, Africa, Australia, North America, and South America, with the exception of Antarctica, were involved in World War I.
== == Of the 7 continents, only Antarctica was NOT involved in fighting in WW2. I'm sure what you meant to say was................What countries, on what continents, were involved in World War Two?
to stop the spread of communism
because it was fourght in countries from 3 different continents
They were called world wars because most large military powers in the world were involved, and it affected the whole world. It also was the single biggest conflict that involved so many nations at the same time. As a matter of fact second world war was spread across continents and had the biggest human casualties ever.
europe....
three
because many countries and continents were involved in the conflict.
If it spread only to 2 countries, then it wouldn't be a world war, that would be a normal war.
World War Two was present in every continent except Antarctica.