We were amazed as to the accuracy of Japanese intelligence, learned through houseboys, maids, store owners, fishermen, salesmen, etc. - ALL Spies!
We learned it was senseless to fight a war that you are unable to win, unless the delaying action could permit an Allied victory elsewhere.
We learned it was hopeless to fight a well-armed major power with
equipment and weapons left over from the last war.
We learned it was best to be mobile when fighting an immovable
force; you might live to fight another day.
We learned that guerrillas in the proper environment and in cooperation with friendly natives can harass an enemy for many months and gain much valuable time and information.
We learned that a fledgling Fil-American force on Bataan and Corregidor could sustain the most crushing campaigns of the mightiest army in the Far East for months, before being starved into submission.
Perhaps, if there had been more Bataans, the course of World War II might have been altered.
Eugene C. Jacobs
Three Great Things Necessary for Survival
In a Prisoner-of-War Camp.