Naval traditions are similar throughout the world, and seamen lost at sea or buried at sea are considered at rest.
I was six years-old and had just learned to read newspapers when the Squalus went down with all hands off Massachusetts. It fascinated me. A brilliant US Naval officer improvised equipment and saved them all.
http://www.newenglandhistoricalsociety.com/the-greatest-submarine-rescue-ever-2/
When the Kursk went down in 2001 with all hands, there was no way in the Russian navy to rescue them. The Royal Navy did save the crew of a Russian research submersible a year later.
Communications before and after sinking as well as the condition of the vessel are used for crew accounting. The crew or the Kursk continued radio contact long after she was sunk.
The USS Arizona is a national cemetery with many of her sailors still aboard. Some of those who survived have had their remains returned to her. They rest with their shipmates.
http://www.history.com/news/5-facts-about-pearl-harbor-and-the-uss-arizona