ABSTRACT
I have briefly touched on the use of spies and captured documents; we must not forget the role played by the groups that operated behind the lines in Burma and elsewhere in south-east Asia, with the original task of organising sabotage and guerrilla activities, and an extra responsibility, added later after acrimonious controversy, for collecting intelligence. There was a link with signals intelligence: signals were their lifeline, and signals security was even more crucial for their survival than it was for any military unit.
