Question: Who attacked the United Nation's forces in Okinawa as a part of Operation Ten-Go.
Sentence (from "Operation Kikusui"): Operation Kikusui (菊水作戦 , Kikusui sakusen ) was a series of suicidal air attacks by Imperial Japanese forces during the Battle of Okinawa against Allied fleets in the waters around Okinawa, as part of Operation Ten-Go.
Relevant evidence: Yes