Complex sentence: Conscription in the United States, commonly known as the draft, has been employed by the federal government on thr of the draft came into being in 1940 through the Selective Training and Service Act.
Split into simpler sentences: Conscription in the United States, commonly known as the draft, has been employed by the federal government on three occasions. The third incarnation of the draft came into being in 1940 through the Selective Training and Service Act.