World Battlefronts: How to be Allies

Many Britons believed that one thing holding up an all-out air offensive in Europe was faulty cooperation between the R.A.F. and the U.S. Army Air Forces. London newspapers said so. Some U.S. correspondents picked up the story. On both sides of the Atlantic people found the report all too easy to believe: it was in character with so much that had gone before, so like those bloody Americans or the goddam British.

There have been irritations, and there will doubtless be more. Clashes on high policy and procedure often enliven staff conferences, cause many a private cussing bee. U.S. pilots and crews,...