The village was annexed in 1913 by Greek forces during the
Second Balkan War. During the years of
Ottoman rule, the village was known by its Bulgarian name
Dragotin. After the events of the
Greek genocide in
Asia Minor, refugees settled in the village. In 1927 the village was renamed Promachonas. Around the village, there are also the villages of
Kapnotopos (2km north-east) and Kleidi (until 1926 known as Roupel/Rupel, in Byzantine times as Rupelion, 4km south). In 1928 Promachonas numbered 463 inhabitants. Before
World War II, the village numbered 1,528 inhabitants, but with the beginning of the
Greek-Italian War, the village and its other 2 settlements were evacuated. After the
liberation of Greece from the Axis and the
Greek Civil War, the refugees settled (from the other two settlements) in Promachonas, and thus the village has 245 inhabitants. In the national census of 1961, the village numbered 416 inhabitants. Promachonas-Topolnica is an important
Late Neolithic settlement and cult site that straddles the Greek-Bulgarian border a few kilometers from the community of Promachonas. ==Monument==