FA Lager is a French military bunker located near Plougastel-Daoulas in Brittany, France. This structure is part of France's Cold War-era defensive network, built during a period of heightened tensions between NATO and Warsaw Pact forces. The bunker's exact function remains unclear from available sources, but its location in western France suggests it may have served as part of the country's strategic defense infrastructure.
The area around Plougastel-Daoulas has a long military history, with Brittany's coastal position making it strategically significant for national defense.