Which was a cause of World War I?
Austria-Hungary’s imperialist ambitions to dominate the Balkans
the invasion of Belgium by German troops
Russia’s desire to stay out of military alliances
the unification of separate German states into one nation
Austria-Hungary’s imperialist ambitions to dominate the Balkans
the invasion of Belgium by German troops
Russia’s desire to stay out of military alliances
the unification of separate German states into one nation