Serbia didn't drop out of World war I. After having initial success in the battles of Drina, Kolubara and Cer ( which were first allied victories in the war) against Austro-Hungarian troops, Germany joined the invasion. Serbian army was then forced to retreat through Albania to Greece, where it joined its allies and reopened the Solun front. Serbia came out of the war victorious.
Serbia didn't join it, it was the first country attacked by austro-hungarian empire.
Serbia Serbia
Austria-hungary attacked Serbia
Serbia
France and Great Britain allied with Serbian during World War 1. Serbia was the first country to be attacked in World War 1.
Serbia
Serbia
The 1st country to declare war on Serbia was Austria-Hungary.
1917 smart
No. Serbia never occupied other nations.
Germany was the first country to declare war on Serbia in World War 1. The other countries were pulled into the war because the had alliances with either Serbia or Germany.
The US entered the war on April 6,1917
an act of terrorism