When the Sleepers Woke

Only two small groups of people--enemies--survive the vast desolation of the Final War.

excerpt
"Prepare for battle!" The command crackled in Allan Dane's helmet. "Enemy approaching from southeast! Squadron commanders execute plan two!" Allan settled back in the seat of his one-man helicopter, his broad frame rendered even bulkier by the leather suit that incased it. He was tensed, but quiescent. Action would be first joined sixty miles away, and his own squadron was in reserve.
Over New York and its bay the American air fleet was in motion. Suddenly movement ceased, and the formation froze. Ten flying forts were each the apex of a far-spread cone, axis horizontal, whose body was the fanned back-ranging of its squadron of a thousand helicopter planes. The cones bristled oceanward from the sea-margin of New York, their points a fifty-mile arc of defiance, their bases tangent to one another, almost touching the ground at their lower edges, then circling upward for ten thousand feet. From van to rear each formation was five miles in length.
Behind and above, the main body of the fleet sloped in echeloned ranks, hiding the threatened city with an impenetrable terraced wall of buzzing helios and massive forts. Up, back, up, back, the serried masses reached, till the rearmost were twenty-five thousand feet aloft. And farther behind, unmoving on their six-mile level, were the light 'copters of the reserve. Dane gazed down that tremendous vista to the far-off front line, and swore softly. Just his luck to be out of the scrap: the enemy would never penetrate to these northern out-skirts of New York.
"Men of the fleet!" General Huntington's voice sounded from his flagship, the _Washington_. Somehow its gruffness overrode the mechanical quality of the intra-fleet radio transmission. Almost it seemed he was there in the tiny cabin. "Reports have at this moment been received that our attack fleets have been everywhere successful. Our rocket ships have destroyed Tokyo, Addis Ababa, Odessa, Peiping and Cape Town, and are now ranging inland through enemy territory."
Even through the double leather of his helmet a roar came to Allan. He felt his craft vibrate to the exultant cheers of the fleet. His own mouth was open, and his throat rasping...