Dale Brown's Dreamland: Razor's Edge by Jim DeFelice

The weapon is codenamed "Razor"—the brainchild of the brilliant minds at Dreamland—a mobile chemical laser system with a range of 600 kilometers capable of downing anything that flies. The destruction of an American aircraft over northern Iraq suggests the inexplicable and unthinkable: a vengeful foe now possesses the lethal technology. It is fear that draws a retired warrior back to the battlefield, and sends Dreamland's best pilots to the skies to determine what the enemy has and to help take it away from him. But politics threatens to crush a covert engagement that must be won in the air and on the ground, unleashing a devastating rain of friendly fire that could ultimately annihilate a nation's champions ... and perhaps Dreamland itself.