2 The Russian Federation invaded its sovereign neighbor on the first moonless night of spring. By dawn their tanks ground westward along highways and back roads as if the countryside belonged to them, as if the quarter-century thaw from the Cold War had been a dream. This was not supposed to happen here. This was Estonia, after all, and Estonia was a NATO member state. The politicians in Tallinn had promised their people that Russia would never attack them now that they had joined the alliance. But so far, NATO was a no-show in this war. The Russian ground invasion was led by T-90s--fully modernized fifty-ton tanks with a 125-millimeter main gun and two heavy machine guns, explosive-reactive armor, and a state-of-the-art automated countermeasure system that detected inbound missiles and then launched missiles of its own to kill them in midair. And behind the T-90 warhorses, BTR-80 armored transporters carried troops in their bellies, disgorging them when necessary to provide cover for the tanks, and then retrieving them when all threats had been neutralized. So far, the land war was proceeding nominally for the Russian Federation. But it was a different story in the air. Estonia had a good missile defense system, and Russia's attack on their early-warning systems and SAM sites had been only marginally successful. Many SAM batteries were still operational, and they had shot down more than a dozen Russian aircraft and kept dozens of others from executing their missions over the nation. The Russians did not yet own the skies, but this had not slowed down their land advance at all. In the first four hours of the war, villages were flattened, towns lay in rubble, and many of the tanks had yet to fire their main guns. It was a rout in the making, and anyone who knew anything about military science could have seen it coming, because the tiny nation of Estonia had focused on diplomacy, not on its physical defense. Edgar Nõlvak had seen it coming, not because he was a soldier or a politician--he was a schoolteacher--but he had seen it coming because he watched television. Now as he lay in a ditch, bloody and cold, wet and shaking from fear, his ears half destroyed from the sustained crashing of detonating shells fired from the Russian tanks poking out of the tree line on the far side of the field, he retained the presence of mind to wish like hell his country's leaders had not wasted time with diplomacy in Brussels, and had instead spent their time constructing a  fucking  wall to keep the  fucking  Russians out of his  fucking  village. There had been talk of an invasion for weeks, and then, days earlier, a bomb exploded over the border in Russia, killing eighteen civilians. On the television the Russians blamed the Estonian Internal Security Service, a preposterous claim given credence by Russia's slick and state-sponsored media. They showed their manufactured proof and then the Russian president said he had no choice but to order a security operation into Estonia to protect the Russian people. Edgar Nõlvak lived in Põlva; it was forty kilometers from the border, and he'd spent his youth in the seventies and eighties fearing that someday tanks would appear in that very tree line and shell his home. But over the past twenty-three years that fear had been all but forgotten. Now the tanks were here, they'd killed scores of his fellow townspeople, and they would surely kill him with barely a pause on their way west. Excerpted from Command Authority by Tom Clancy, Mark Greaney All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.