What legislation signed into law in 1940 indicated Roosevelt's commitment to war preparedness?

The Selective Training and service Act of 1940 was the legislation signed into law and indicated Roosevelt's commitment to war preparedness. This Act required every American citizen between the age of 21 to 35 to enroll with the local Draft Boards. Later when the United States got into World War II, all American men between the age group of 18 years and 45 years were made a subject to military service while all American men between the Age group of 18 years to 65 years were made to register their name with the local Drafts Board. These steps show Roosevelt's preparedness and commitment to war.