During the First World War, the Balkans was divided into two camps: Serbia was fighting on the side of the Triple Entente against Bulgaria and Turkey, which were in coalition with the central powers.
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- 一战期间,巴尔干分成两个阵营:塞尔维亚在三国协约一方作战,而保加利亚和土耳其则与中央列强结盟。