the Japanese dug an tunnel network under ground on a huge scale to avoid bombings from allied ships, before the invasion of Okinawa.
沖縄県 (okinawa-ken), which is "Okinawa Prefecture", omitting the last Kanji 県 (ken) makes it 沖縄 (okinawa).
Okinawa is an island
Okinawa is a part of Japan so yes, Okinawa was in WWI.
Okinawa is in northern hemisphere.
Okinawa is in Japan not China.
is there a military cemetery in okinawa
Okinawa Expressway was created in 1975.
Okinawa Island's population is 1,384,762.
Okinawa University was created in 1961.
Okinawa Rail was created in 1981.
Okinawa Monorail was created in 2003.
Okinawa Television was created in 1959.