A military bunker located near Saint-Nazaire, France, in the Loire-Atlantique department. The specific designation 'FL184' suggests it may be part of a numbered series of fortifications or observation posts. The region has a significant military history, including Atlantic Wall constructions from World War II and Cold War-era defenses, though the exact purpose and period of this particular structure are not confirmed by the available information.
The provided web search results discuss contemporary French nuclear policy and do not contain any information regarding this specific bunker site or its historical context.