Two and a half years later he returned to the United States and was assigned to the Air Corps Technical School at Lowry Field, Colorado.

At the beginning of World War II, he was assigned as director of training, Army Air Forces Technical School, Gulfport Field, Mississippi.

Later Reeves served as director of training, then commanding officer of the Army Air Forces Technical School at Yale University.

During this time USAFE was helping to reinforce the North Atlantic Treaty Organization through a buildup of U.S. Air Force units in Europe.

He was responsible for manning combat and support units, as well as for personnel policies for a command of more than 100,000 people in more than 15 countries of Europe, North Africa and the Middle East.