War in the air

How many soldiers and civilians were killed?

Approximately, how many nations were involved in WW1?

Which country had a significant advantage in the war?

Canada did not have its own air-force, but many Canadians joined the (                   )?

Approximately, how many percentage of British Airforce were Canadian-born?

How did aircrafts look like in the beginning of the war?

Who was responsible for most air combat victories?

World War 1 is also known as 

Which country made the first declaration of war?

When did the WWI begin and end?

Airplanes were only (     )  years old when the war began.

Which country had about twice as many aircraft as the British and French?

"The Fokker Scourge" used by (     )?

What is the "Fokker Scourge"?