The
Military Training Act 1939 was an
Act of Parliament passed by the
Parliament of the United Kingdom on 26 May 1939, in a period of international tension that led to
World War II. The Act applied to males aged 20 and 21 years old who were to be called up for six months full-time military training, and then transferred to the Reserve. There was provision for
conscientious objectors. It was the UK's first act of peacetime
conscription and was intended to be temporary in nature, continuing for three years unless an
Order in Council declared it was no longer necessary.