Veterans strengthening America. Supporting veterans, the military & their families since 1919. #BeTheOne https://t.co/O6BJ5FyBgo. RTs do not imply endorsement. Organization for Veterans. "Still Serving".  The American Legion was chartered and incorporated by Congress in 1919 as a patriotic veterans organization devoted to mutual helpfulness. It is the nation’s largest wartime veterans service organization, committed to mentoring youth and sponsorship of wholesome programs in our communities, advocating patriotism and honor, promoting strong national security, and continued devotion to our fellow servicemembers and veterans.