Which military action led to the start of World War I?

Germany’s invasion of France

Russia’s invasion of Germany

Austria-Hungary’s invasion of Serbia

Italy’s invasion of Bosnia

Verified Answer :

It was "Austria-Hungary’s invasion of Serbia" that was one of the military actions that led to the start of World War I, since this was a blatant violation of sovereignty.

Which military action led to the start of World War I?

Austria-Hungary’s invasion of Serbia

The answer is C :) Yw