1939 to 1945
World War 2 was about two years longer than World War 1.
About twenty years.
Which one? One or Two? One lead to two 20 years later.
Two in its last twenty years of being the Russian Empire: The Ruso-Japanese War and World War I.
They weren't held during the years of World War one and two.
Leningrad.
Neutral
Well firstly two World Wars have taken place so far, World War I and World War II. World War I was from 1914 through to 1919. World War II lasted from 1939 to 1945.
World War I ended with the Treaty of Versailles on November 11, 1918. World War II is generally considered to have started on 1 September 1939. So a bit (two months and ten days) under 21 years.
No, seeing as World War I ended in 1918, two years before the twenties began.
World war two started in may 1939 and ended in September 1945 so the conflict lasted about 6 years.
World War 2 lasted longer, six years compared to the four years of World War 1.