Early in the interwar period , he attended the dedication of the Liberty Memorial in Kansas City , Missouri , in honor of the Americans who died in World War I , and met General of the Armies John Pershing , who commanded the American Expeditionary Forces in Europe during the war .
Following his discharge in 1919 , he attended the dedication of the Liberty Memorial in Kansas City , Missouri , in honor of those Americans who died in World War I . While there , he met General John `` Black Jack '' Pershing , commander of all U.S. forces in France during the war .