10 A Leader WHEN one has met some of the command- ers of the Royal Air Force, one is struck by the strange, indefinable likeness that exists between them all. The fine faces, the blue eyes that have stayed so young beneath greying hair, that mixture of the gentle and firm, that friendly yet serious discipline all belong essentially to the Air Force. The fighter pilot known to his comrades as the Enfant Terrible, who to-day says a thousand and one crazy things in the squadron's mess, will in twenty years have grown into this colonel, his hair prematurely whitened by the dangers of his life, distant and betraying, beneath the courteous humour of his nation, a secret sadness—the sadness of a commander who must give to men he loves orders that are both terrible and necessary. The Group Captain stood in front of a map which entirely covered one wall of the room and showed me his objectives: 'According to our reconnaissances,' he said, 'the principal enemy troop concentrations are here (and his pencil described a vast circle). So their supply lines are these two railways and these roads. These 196