Status Updates From Going Solo

There is virtually no communication. The Greeks are our radar. We have a Greek peasant sitting on the top of every mountain for miles around, and when he spots a bunch of German planes he calls up the Ops Room here on a field telephone. That's our radar
Does it work?
Now and again it does, he said. But most of our spotters don't know a Messerschmitt from a baby-carriage

Excellent read, what incredible experiences Roald Dahl had traveling in Africa as well as a RAF fighter pilot.