 He opposed not only the intervention of the United States, but also the provision of aid to the United Kingdom.He supported the anti-war [[America First Committee]] and resigned his commission in the [[U.S. Army Air Forces]] in April 1941 after President [[Franklin Roosevelt]] publicly rebuked him for his views.In September 1941, Lindbergh gave an address stating that the British, the Jews and the Roosevelt administration were the "three most important groups" pressing for greater American involvement in the war.