“Marching into Germany, Americans had no intention of remaining; they had counted on keeping occupation armies on German soil no more than two years. But once involved in Central Europe, and understanding Soviet motives and ambitions, the U.S. government did not dare depart. Gradually, American officialdom began to accept the fact that some problems, like that of Germany, defied any quick solution, and that the price of continued security or success had to be eternal vigilance.”