Take the following as truth: It was there, at 15 minutes past midnight local time on 8 December 1941 (when it was still 7 December on the other side of the International Dateline in Hawaii) that Japanese troops landed from assault vessels on Sabak Beach (see page 97).
Then the following statement: "A Japanese landing force arrived in Hawaii in December, 1941." is true, false, or inconclusive?