Convoys ONS 20/ON 206
              < Convoys ONS 20 
 
            
          | Convoys ONS 20/ON 206 | |||||||
|---|---|---|---|---|---|---|---|
| Part of World War II | |||||||
| 
 | |||||||
| Belligerents | |||||||
| Germany | United Kingdom Canada | ||||||
| Commanders and leaders | |||||||
| Admiral Karl Dönitz | ONS 20 : Comm : Escort :Cdr RA Currie | ||||||
| Strength | |||||||
| Schlieffen: 14 U-boats | ONS 20: 7 warships | ||||||
| Casualties and losses | |||||||
| 6 U-boats destroyed | 1 ship sunk | ||||||
ONS 20 and ON 206 were North Atlantic convoys of the ONS/ON series which ran during the battle of the Atlantic in World War II. They were the subject of a major U-boat attack in October 1943, the third battle in the Kriegsmarine's autumn offensive.