The country was, in the autumn of 1938, primed for a panic. In August of that year, the German military mobilized. On October 15, they invaded Czechoslovakia. Despite efforts to appease Hitler, it seemed the German appetite for conquest and, more acutely, the desire to revenge itself against the harsh punishments levied against it after the Great War, was going to send Europe into a second horrible conflict. Although war had not been declared in 1938, and although the United States was determined to stay out.