Shark attack, 02-Mar-1943 to 07-Mar-1943 (Sea Disaster)
Location:  Huon Gulf, Morobe Province, PAPUA NEW GUINEA
Activity: Known as The Battle of the Bismarck Sea :  8 Japanese destroyers guarding a convoy of 8 transports were attacked by 129 Allied fighters, 207 bombers & 3 squadrons of the Royal Australian Air Force. 
Injury: An estimated  3,000 to 7,000 Japanese troops perished, some were taken by sharks
Fatal: Y
Source: G. Duncan, et al