Disintegration of the austro-hungarian empire,
creation of new nation-states in central europe,
and germany’s loss of colonies were all
consequences of
(1) the napoleonic wars
(2) the franco-prussian war
(3) world war i
(4) world war ii

Disintegration of the Austro-Hungarian Empire, creation of new nation-states in central Europe, and Germany's loss of colonies were all consequences of 3. World War I. Following the war, the Central Powers fell into a period of decline, which opened the door to extremist political groups such as Hitler's Nazi Party in Germany.

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