ユーゴスラビア王国は何故滅亡した？
The important elements that fostered the discord involved contemporary and historical factors, including the formation of the Kingdom of Yugoslavia, the first breakup and subsequent inter-ethnic and political wars and genocide during World War II, ideas of Greater Serbia, Greater Croatia, Greater Albania, and conflicting views about Pan-Slavism, and the unilateral recognition by a newly reunited Germany of the breakaway republics.
inter-ethnic and political wars and genocide