SM U-cruiser U 139 in a battle with a Portuguese gunboat in October 1918. After a 2 hour battle, NRP Augusto Castilho was sunk by the U139 while escorting the merchant ship San Miguel, who managed to escape safely
SM U-cruiser U 139 in a battle with a Portuguese gunboat in October 1918. After a 2 hour battle, NRP Augusto Castilho