I was away from the front lines for a while this spring, living with other troops, and considerable fighting took place while I was gone. When I got ready to return to my old friends at the front I wondered if I would sense any change in them. ↗
About every two minutes a new wave of planes would be over. The motors seemed to grind rather than roar, and to have an angry pulsation like a bee buzzing in blind fury. ↗