Nineteen months later, when the armistice was signed, the two small and poorly equipped flying fields had increased to thirty-six in the United States and seventeen in France, preparing students for all of the demands of aerial warfare. The sixty-five officers had multiplied to 10,300 flying men and there were 5,460 cadets in training and almost ready to be added to the number of those in the air, while there were nearly 8,000 officers in the non-flying divisions of the service, which contained also 133,600 enlisted men, trained for their specialized work. Within a year and a half the Air Service had been expanded from a beginning of little consequence to a size greater than that of the army in the years before the war and all of it had been trained in the technique of a new branch of warfare. In the production of aircraft and accessories 200,000 men and women were engaged, nearly all of whom had been trained for this skill-demanding work. There had been produced over 12,000 air and sea planes, more than 1,000 balloons and 31,800 aviation engines. During the last month of the war production, which had then reached a quantity basis, had mounted to the rate of 1,500 planes and 5,000 engines per month. CHAPTER XVI PROVIDING THE MEANS Spruce and fir production in the forests of the Northwest for airplane stock was at once pushed forward. I. W. W. agitators endeavored to incite the men of the logging camps to cease work, disable machinery and injure stock. But they were driven away, the loggers and lumbermen of the district formed a Loyal Legion which was assisted by 30,000 enlisted men sent to the Northwest for this purpose, and production was increased to unprecedented figures. The output previously had never exceeded two and a half million feet per month. By the end of hostilities it had reached 25,000,000 feet per month and was still increasing in the effort to reach the goal, as it would have done very shortly, of a million feet per day.