Operation Caesar
| Operation Caesar | |||||||
|---|---|---|---|---|---|---|---|
| Part of The Second World War | |||||||
Location of U-864 | |||||||
| |||||||
| Belligerents | |||||||
| Germany | United Kingdom | ||||||
| Commanders and leaders | |||||||
| Ralf-Reimar Wolfram † | Jimmy Launders | ||||||
| Strength | |||||||
| U-864 (Type IX U-boat) | HMS Venturer (V-class submarine) | ||||||
| Casualties and losses | |||||||
|
U-864 sunk 73 crew and passengers killed | None | ||||||
Operation Caesar (Unternehmen Kaiser) was a secret mission carried out by Germany in the Second World War to supply Japan with advanced technology. The operation failed due to the sinking of U-864 by a British submarine, the only known example of a submerged submarine sinking another submerged submarine.