Bomber 31
I must admit, the concept of sending a half dozen twin engined aircraft on a long over-water mission in appalling weather to (lightly) bomb an insignificant harbour struck me as an exercise in military futility.
Were the Japanese high command really sufficiently daft to take this as a run-up to an invasion?
But as usual the aircrew must have been amazingly brave men.
Maybe though, being aircrew was better than being a Sherman tank crew faced with a Tiger tank. (cf the programme which preceded "Bomber 31") How come the Western Allies in World War II could build such good aircraft and such lousy tanks?