The K XIX was a submarine built in Schiedam in 1936. During construction it was renamed to O 19 and was first commissioned to the Royal Netherlands Navy in 1939.
The O 19, together with the O 20 were the first two submarines in the world equipped with the 'getrimd diesel systeem' or 'snort system'. This system allows the submarine to run its diesels while submerged in order to recharge batteries, ventilate the boat and cover some useful miles underwater.
The O 19 was mainly used for mine laying operations in de Dutch East Indies during the second World War. During her duty the submarine sank eight ships and damaged one.
On the 8th of July 1945 while on her way to the Philippines the O 19 stranded on the Ladd Reef (to the southeast of Vietnam). That same day the U.S.S. Cod received a message that the O 19 was stranded and set course for the Dutch submarine. The next morning the U.S.S. Cod attempts to pull the O 19 free but without succes. After multiple attempts the crew of the O 19 was taken aboard the U.S.S. Cod and the O 19 was shot to prevent the enemy from gaining any usefulness from the stranded submarine.