A history of the War Department of the United States: With biographical sketches of the secretaries provided a brief sketch of General Armstrong's service in the Revolutionary War:
"...appointed Secretary of War in January 1813 Mr Eustis having resigned. This office General Armstrong conducted with exceptional energy and good sense, effecting not a few salutary changes in the organization of the army. The sack of Washington, however, and ill fortune in the Canada campaign, produced a popular clamor against him and like Eustis he escaped to the wilderness of private life, carrying the sins of others on his shoulders." [ibid]
From earlier blog posts:
Was Armstrong a disastrous choice? One of Secretary of War Armstrong's actions was to create nine districts.