Crisis in the Balkans Review. The Balkans (# 1 & 2). The Balkans were known as Europe’s “powder keg” because there were very high nationalist tensions between the countries in the region. The countries in the Balkans are : Romania, Serbia, Bulgaria, Albania & Greece.
“We’re ready! Are you?”
“Prepare for war!”
Serbia tried to negotiate some of the terms of the ultimatum with Austria. Since Austria knew Germany was backing them they refused to negotiate and war was declared!