Hi, kaigunair. I have contacted with the Author's side(Publisher) today.
Let's look forward to any good reply.
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The followings may concern with the incident.
USAAF Chronology:
PACIFIC OCEAN AREA (POA)
MONDAY, 23 APRIL 1945
AAFPOA (Seventh Air Force): 13 B-24s from Guam Island pound positions on
Marcus Island. The 28th Photographic Reconnaissance Squadron, Seventh AF,
based on Kualoa Airfield, Hawaii with F-5Es, sends a detachment to operate
from Okinawa, the first Seventh AF unit to arrive (another detachment is
operating from Saipan Island).
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As you may know, F-5E is a variant of P-38 with
no guns