The clear voice ceased, and I turned from the distance-phone to meet the startled eyes of Macklin, my first officer, who stood at the cruiser's wheel beside me. "Head eastward--full speed, Macklin!" I cried to him. "It's war at last--war with the European and Asiatic Federations!" Instantly Macklin swung over the wheel in his hands, and as he did so the whole long bulk of our cruiser swung likewise in mid-air, curving up and backward to race eastward above the green plains, the descending sun at our backs. A moment more and the cruiser's long torpedo shape, gleaming and unbroken metal save for the rows of portholes and the raised, transparent-walled bridge-room in which we stood, was splitting the air eastward at a speed that mounted with each moment. I reached for the order-phone, and as Hilliard, my young second officer, answered from the motor-rooms beneath, I informed him briefly of what had just been told me. Then there was a muffled cheer from the hundred-odd members of our crew, beneath, and a few minutes later the drone of the great motors had reached to an even higher pitch, and we were racing through the sunlight high above the earth at more than a thousand miles an hour. Standing there with Macklin in the bridge-room as we shot eastward, though, my thoughts were grave enough despite the exciting quality of the news we had just heard. War!--the war that we of the American Federation had expected, had feared for decades. It had not been more than thirty years since the third Air War of 2039. Three mighty nations alone now shared the world between them; the American Federation, comprising the whole North and South American continents, with New York as its capital; the European Federation, which included all Europe west of Caucasus and all Africa, its center at Berlin; and the Asiatic Federation, which held all Asia and Australasia for the brown and yellow races, with Peking as its capital. And though for three decades now there had been peace between them, it had been an uneasy peace dictated by the fact that each feared to attack another lest he be attacked by the third. The great navies of air-cruisers of the three mighty Federations had patrolled the air in ceaseless vigilance, their air-forts ever watchful. Lately, however, it had become apparent to all that a rapprochement had taken place between the European and Asiatic Federations, and such an alliance could only mean an attack upon our own, the American. So we had stood even more vigilantly upon the watch, and now that for which we had waited had come at last, and the two great Federations had launched their two mighty fleets upon us.