During the Confrontation in Borneo in the sixties the HF frequency we used to pass our departure and arrival messages at Kampongs and clearings was jammed with traffic in Viet Nam.
One day a pilot took advantage of a quiet moment to pass a departure message. An American voice came up.
"Getta offa this frequency, don't you know there's a war on?"
To which our hero replied.
"Of course I do, we've got one here too, but we're winning ours."