The National Government of 1937–1939 was formed by Neville Chamberlain on his appointment as Prime Minister of the United Kingdom by King George VI. He succeeded Stanley Baldwin, who announced his resignation following the coronation of the King and Queen in May 1937.

The Secretary of State for War, commonly called War Secretary, was a secretary of state in the Government of the United Kingdom, which existed from 1794 to 1801 and from 1854 to 1964. The Secretary of State for War headed the War Office and was assisted by a Parliamentary Under-Secretary of State for War, a Parliamentary Private Secretary who was also a Member of Parliament (MP), and a Military Secretary, who was a general.