The skies over the Balkans are busy. Air traffic volume has doubled in the region since 2003 and now up to 2,500 flights cross Serbian and Montenegrin airspace on peak days during the summer.
The skies over the Balkans are busy. Air traffic volume has doubled in the region since 2003 and now up to 2,500 flights cross Serbian and Montenegrin airspace on peak days during the summer.
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