Hospital ship
A Hospital ship is a big boat which is built to cure patients. Most are operated by militaries, or by governments. Attacking one is a war crime, but Hospital ships are not allowed to carry any weapons, and enemy navies (if the owner of the Hospital ship is at war) are allowed to inspect them. And hospital ship is due to be protected by Second Geneva Convention.
Hospital Ship Media
HMS Melbourne, the first modern hospital ship, served during the Second Opium War. Excerpt from The Illustrated London News about the ship (click to read).
RMS Mauretania as hospital ship HMHS Mauretania during World War I.
Template:HMHS (youngest sister of Titanic and Olympic) after conversion to a hospital ship during World War I.
Non-government hospital ship MV Africa Mercy