Excerpt from the Focus on the Family review of the film:Here's the rest of it.
I served on Okinawa with a man from early 1964 to late1967 that was already a Corporal in the USMC when Pearl Harbor was bombed. At the time I met him he was a SGM (E-9) in the US Army. He told me he was a tank driver during the invasion of Okie,helped build the first stockade (military jail) there,and was the first prisoner.
If I ever knew his first name I have forgotten it. Everybody that he knew and liked just called him "Pappy",and everybody else had the good sense to just leave him alone. NOBODY screws around with SGM's and gets away with it unless they are wearing stars,and even that isn't a sure thing.
Pretty much the entire north end of the island was off-limits then and sealed off with a tall chain link fence due to un-exploded ordinance from WW-2 still laying around,mostly Japanese booby traps guarding the entrances to underground tunnels and caves. Supposedly there was (is?) still a Japanese sub pen under the island where the Japanese subs used to surface to rearm or hide in that was just sealed off with explosives by the Army because doing so removed it as a threat and cost no US lives. Same thing with a huge cave used to store Japanese aircraft ,but that was supposed to have been done by the Japanese to keep the Americans from seizing the planes and armaments in there.
And who knows how many storerooms or troop billets in sealed off caves? By the time US troops got to the cave areas the automatic approach was to call out for a surrender,and if the Japanese didn't surrender,just hose them down with flamethrowers. The ones that didn't burn to death died from lack of oxygen. Some (many?) of the Japanese preferred a quicker death by blowing themselves and the caves up at the same time to deny the US soldiers access to their supplies.
Despite,and maybe even because,those places being off-limits,Pappy's major hobby was sneaking into the northern area when off-duty,and mapping out the caves and finding access points. His goal was to find,investigate,and map them all. Having been in the combat arms military for almost 30 years by that time,boobytraps didn't scare him very much. Plus,nobody was going to be shooting at him while he disarmed them.
He was still at it the last time I saw or spoke with him in late 67,and I never saw him again. I went back to Bragg,then to VN,and then back to Bragg again before getting out of the army. I have no idea if he was successful or not,or if anyone even got to access his records when he died. Or truth to tell,if anyone other than a handful of people who knew him on Okie even knew what he had been doing. Since what he was doing was illegal at the time,it wasn't something he talked a lot about.
I hope those records at least went to the Ft.Buckner museum on Okie so that maybe the curators there might be able to benefit from them.