answersLogoWhite

0

The trigger event for the First World War was the assasination in Sarajevo, which at the time was within the Austro-Hungarian Empire. (That empire was abolished in the treaties at the end of the war, and Austria became a small nation) The first significant military action on foreign soil was German's invasion of Belgium, but many of the European countries had mobilised their forces by that stage and war had become inevitable, given the political sensitivities of the period.

User Avatar

Wiki User

16y ago

What else can I help you with?