![1940 Daily Sketch front page reporting the French Navy attacked by Royal Navy at Oran (Mers-el-Kebir Stock Photo - Alamy 1940 Daily Sketch front page reporting the French Navy attacked by Royal Navy at Oran (Mers-el-Kebir Stock Photo - Alamy](https://c8.alamy.com/comp/E5GEDF/1940-daily-sketch-front-page-reporting-the-french-navy-attacked-by-E5GEDF.jpg)
1940 Daily Sketch front page reporting the French Navy attacked by Royal Navy at Oran (Mers-el-Kebir Stock Photo - Alamy
![Second World War tweets from 1939 on X: "British warships now blockading port of Mers-el-Kébir, Algeria; they're giving French fleet in harbour an ultimatum: either join Royal Navy to fight Germans, surrender Second World War tweets from 1939 on X: "British warships now blockading port of Mers-el-Kébir, Algeria; they're giving French fleet in harbour an ultimatum: either join Royal Navy to fight Germans, surrender](https://pbs.twimg.com/media/DhLsWv6XkAEWvN9.jpg)
Second World War tweets from 1939 on X: "British warships now blockading port of Mers-el-Kébir, Algeria; they're giving French fleet in harbour an ultimatum: either join Royal Navy to fight Germans, surrender
![Dunkirk1940 Museum on X: "#OTD in 1940 the #French fleet are shelled by their former allies at Mers El Kebir (Algeria). #WW2 #Navy https://t.co/cVIENeNn60" / X Dunkirk1940 Museum on X: "#OTD in 1940 the #French fleet are shelled by their former allies at Mers El Kebir (Algeria). #WW2 #Navy https://t.co/cVIENeNn60" / X](https://pbs.twimg.com/media/E5ZOn0XXwAAIQec.png)