This looks like a recording of early 1970s when they were fighting the
communists in Sibu. My Dad almost 50 was recruited as a volunteer
vigilante with other senior government officers. The funniest anecdote
was they never taught him to fire a rifle properly. They just gave him a gun. When the gun recoiled, it hit
his shoulder. My mother had to apply sloan liniment on him. Jokingly
scolding, old Ah Pek aka old man still be AH PING KO aka young soldier.
Going back to the World War II, my dad was chosen by the Japanese soldiers to be a Japanese Civilian worker.