I believe 1919-1925
Third period of World War II happened in 1945.
The cold war
The 'Cold' war .
It is called the "interwar period" as its between 2 world wars.
World War I started in 1914. "Pre-World War I" may refer to anything before World War I; it is not a precisely defined time period. In other words, this period obviously ends in 1914, but there is no precise starting date.
The 1920s were a period of relative peace between World War I, which ended in 1918, and World War II, which started in 1939.
The Phoney War
the cold war
1939-1945
Period of peece
The economy of China in the world war 1 period was that it was in a bad shape.
World War I lasted from 1914 - 1918, and World War II was from 1939 - 1945, so WWII continued for a longer time period.