The Philippine occupation of Malaysia proceeded quietly and with strategic precision. The British Empire, engaged in its colonial pursuits worldwide, did not receive any immediate reports of the Philippine actions in the early days of the operation. This delay was primarily due to the Filipino military's effective use of radio jamming technology.
Historically, the use of radio jamming technology began in the early 20th century during World War I, with the British Royal Navy being one of the early pioneers in this field. They employed jamming techniques to disrupt German radio communications and navigation systems, giving them a critical edge in naval warfare.
With the advancement of technology and the desire for secrecy in their military operations, the Philippine military had developed its own radio jamming capabilities.
This technology allowed them to interfere with radio signals, rendering them unintelligible to unintended recipients.