Action of 15 August 1917
| Action of 15 August 1917 | |||||||
|---|---|---|---|---|---|---|---|
| Part of World War I | |||||||
| |||||||
| Belligerents | |||||||
| Royal Navy | Imperial German Navy | ||||||
| Commanders and leaders | |||||||
|
Thomas Crisp † William “Johnsey” Manning (MIA) | (possibly Kpt. Karsten von Heydebreck) | ||||||
| Strength | |||||||
| 2 armed smacks | 1 U-boat (possibly SM UC-63) | ||||||
| Casualties and losses | |||||||
|
1 killed, 7 missing 2 ships sunk | unknown | ||||||
The action of 15 August 1917 was a naval engagement which occurred during the First World War. The action was fought between a German U-boat (believed to be SM UC-63) and two naval trawlers, Nelson and Ethel & Millie, in the North Sea.