The failed 1940 mission to capture a strategic African port
In September 1940, an Allied task force descended on Dakar to flip a Vichy French colony to the Allied cause. What was intended as a diplomatic takeover spiraled into a violent naval engagement, leaving behind a legacy of political tension and a wounded reputation for General Charles de Gaulle.
Operation Menace was born from the chaos following the June 1940 armistice between France and Nazi Germany. As various colonies wavered in their allegiance, the British sought to secure the strategic port of Dakar in French West Africa. The mission held immense stakes: the port was a superior naval base compared to Freetown, and it housed the Polish government in exile along with the precious gold reserves of the Banque de France.
The Allied fleet, including the aircraft carrier HMS Ark Royal and the battleship HMS Barham, arrived with orders to negotiate a peaceful occupation. However, resistance from the Vichy administration turned the mission into a combat operation. The unfinished French battleship Richelieu, though only 95% complete, became a formidable participant, using its 380mm guns to engage the British. The battle saw intense aerial dogfights between British Swordfish and French Curtiss Hawks, as well as heavy fire from coastal batteries using repurposed 240mm guns.
The outcome was a significant setback for the Allies. While the British managed to sink two Vichy submarines, the mission failed to secure the colony. The heavy damage to the HMS Resolution forced it to be towed all the way to Cape Town, and the Vichy forces successfully defended their territory. For General de Gaulle, the failure was a political blow that damaged his standing with his Allies, forcing him to rely on the much less economically vital French Equatorial Africa for the time being.
Source: Battle of Dakar
