When did the war start
When did the country collapse?
When was the nation founded?
100

When did the second world war start?

1939

100

USSR

1991

100

United States of America

1776

200

When did the Korean war start

1950

200

Qing Dynasty 

1912

200

Communist China (when the civil war ended)

1949

300

When did the Gulf War start

1990

300

Ottoman Empire

1922

300

Kingdom of Italy

1861

400

When did the Napoleonic Wars start

1803

400

Byzantine Empire

1453

400

Modern Hungary

1918

500

When did the 30 years war start

1618

500

South Vietnam

1975

500
Belgium

1830

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