Complex sentence: In April 1945, under Operation Ten-Go, "Yamato" was assigned on a suicide mission against the American forces at the Battle of Okinawa; given only enough fuel for a one way mission, and only a cruiser as an escort.
Split into simpler sentences: In April 1945, under Operation Ten-Go, "Yamato" was assigned on a suicide mission against the American forces at the Battle of Okinawa. Given only enough fuel for a one way mission, and only a cruiser as an escort.