Eugene J. Bullard served in the French Infantry and French Air Force in WWI, the French Infantry in WWII, and spied on the Germans for the French, evading through France in 1940.  He was a Black American.

 

Sources for further information on Bullard:

• Eugene Bullard: Boxer, Pilot, Soldier, Spy, and Elevator Operator (Georgia Humanities): https://www.georgiahumanities.org/2017/04/12/eugene-bullard-boxer-fighter-pilot-soldier-spy-and-elevator-operator/ 
• Eugene Bullard, Hero of Two World Wars: https://www.youtube.com/watch?v=IIKDvou2fq0
• Meet the Amazing Eugene Bullard (Sagharbor Express.com): https://sagharborexpress.com/meet-the-amazing-eugene-bullard/
• Museum of Flight, Eugene Bullard, the First African American Fighter Pilot and Veteran of Two World Wars: https://blog.museumofflight.org/eugene-bullard-the-first-african-american-fighter-pilot-and-veteran-of-two-world-wars
• National Air and Space Museum: https://airandspace.si.edu/stories/editorial/eugene-j-bullard
• Remembering Eugene Bullard: The First African-American Fighter Pilot: https://www.youtube.com/watch?v=xQCiNe8VGzs
• The Two Lives of Eugene Bullard: https://www.pbs.org/wgbh/americanexperience/features/great-war-two-lives-eugene-bullard/
• Wikipedia: https://en.wikipedia.org/wiki/Eugene_Bullard
• All Blood Runs Red: The Legendary Life of Eugene Bullard — Boxer, Pilot, Soldier, Spy, by Phil Keith and Tom Clavin, Harbor Press, 2019.  Available from Amazon Prime.