thumb|Antante in Bitusha, today Parorio, in 1917
Paroreio (pronounced Parori by locals) (, before 1926: Μπιτούσα – Bitousa; in an effort to Hellenize Macedonia.
The region saw a military presence during World War I and World War II, with French and other ally troops establishing small bases in the area. Border towns like Parorio were at risk of invading parties from the Balkans to the North, who were looking for any point of entry into Greece and access to its important sea routes. The area also saw a brutal conflict when the Greek Civil War emerged following World War II. Many were forced out of their homes and much hardship and tragedy took place at this time.
Only a small fraction of the former population numbering 800 continues to inhabit the village.
Today, the area is sparsely inhabited, but is experiencing a slight rejuvenation in the agriculture industry, as part of a plan funded by the European Union. Some of Greece's most fertile land lies in the area that surrounds the region.