Action of 14 October 1918

Action of 14 October 1918
	Part of World War I; Atlantic U-boat Campaign
	; Portuguese Navy ship NRP Augusto de Castilho
Date	14 October 1918
Location	Atlantic Ocean, 200 miles from Ponta Delgada, Azores
Result	Portuguese naval trawler is sunk but accomplishes mission of protecting the civilian steamer
Belligerents
Portugal	German Empire
Commanders and leaders
Carvalho Araújo †	Lothar von Arnauld de la Perière
Strength
1 naval trawler; 1 civilian steamer	1 Submarine
Casualties and losses
Naval trawler sunk with 6 dead and several wounded	Submarine damaged, unknown human casualties

The action of 14 October was a naval engagement of the First World War when the Imperial German Navy submarine SM U-139 attacked the Portuguese civilian steamer São Miguel and the Portuguese Navy naval trawler NRP Augusto de Castilho in the Atlantic Ocean on 14 October 1918.^[1]

^ James H. Guill, "the only battle of note that occurred near the Azores during this period took place 14 October 1918 between the German U-139 and Portugal's ships São Miguel and Augusto Castilho.", page 507.