Metaxas Line
The Metaxas Line was a chain of fortifications constructed along the line of the Greco-Bulgarian border, designed to protect Greece in case of a Bulgarian invasion after the rearmament of Bulgaria. It was named after Ioannis Metaxas, then Prime Minister of Greece, and chiefly consists of tunnels that led to observatories, emplacements and machine-gun nests. The constructions are so sturdy that they survive to this day, some of which are still in active service. Some of them are open to the public. German artillery shelling the Metaxas Line The Metaxas Line consists of 21 independent fortification complexes, the largest of which is Fort Roupel as it covers 6.1 out of the 155 km of the full line and had been constructed at a height of 322 m. Illumination was initially mostly provided by oil-lamps, although generators were also installed. (Currently, the fortifications are supplied with public electricity, but they are also equipped with generators). Ventilation was achieved