\ =3h— available at Pearl Harbor, \ That, to be sure, was a surprise attack preceding declaration of hostilities, but such possibilities must be taken into account for the future, At any rate, the Japanese air attacks upon our ships off Okinawa occurred more than 3 years after the opening of hostilities, and there the Japanese, who were not superior in numbers on any one day and who did indeed lose over 4,000 planes in 2 months of battle, nevertheless succeeded in sinking or damaging no fewer than 253 American warships, For that matter, the British were effectively raiding targets deep in Germany, and doing so without suffering great casualties, long before they had overtaken the German lead in menbers of aircraft, The war has demonstrated beyond the shadow of a doubt that the sky is much too big to permit one side, however superior;rto shut out enemy aircraft fs See SS ’{S ra fa completely from the air over its territories. The concept of "command of the air," which nok used altogether too loosely, has never been strictly analogous to that of "command of the sea," The latter connotes something approaching absolute exclusion of enemy surface | craft from the area in question. The former suggests only that the enemy is suffering losses greater than he can afford, whereas one's own side is not. But the appraisal of tolerable losses is in part subjective, and is also affected by several variables which may have little to do with the number of planes dowmed, Certainly the most important of those variables is the amount of. damage being inflicted on the bombing raids, An air force which can destroy the cities ina given territory has for all practical purposes the fruits of command of the air, regardless of its losses, Suppose, then, one put to the Army Air Forces the following question: If