ROYAL AIR FORCE fortnight had been: men awakened at three in the morning, flying until nightfall, never landing except for petrol and ammunition. "You must have been exhausted/ 'We were so tired it was all we could do not to fall asleep in our machines. . „ . Fortunately, our Vice Air-Marshal came to inspect us. When he saw three days' growth of beard on most of us he under- stood without our saying a word and had pilots sent out from England to relieve those who couldn't carry on/ "And the others?" 'We've had a little rest and it'll do. Excitement keeps you going and this is the most exciting sort of big-game hunting.' cAnd what are your losses?3 'They don't really amount to much. We've lost machines, which have been replaced immediately, but very few pilots. The bombers have suffered more than we have. As for the Germans. . . .' On the outskirts of the wood, in the shade of the young trees, a mechanic, stripped to the waist had spread out the Squadron's flag. For every aeroplane brought down he was painting a tiny black swastika.