Note 18 — Chapter XIV · Measure of the Fighting

At the time of the landing, 35th Army Headquarters did not know the number or name of the American units which had landed ... but within a day headquarters learned.... We found out ... by tuning in on the San Francisco broadcasts; Japanese troops in the combat area were unable to determine their identity. From the same source, we later obtained information which was of considerable help in planning. In fact, that was the only way we could get information.... Information was always received through the San Francisco broadcast before reports from our front line units reached headquarters.... Since the information came much sooner from the American broadcast than from the Japanese communications, the Army Headquarters depended on the American broadcasts for much intelligence.18