When the US entered the war, American officers refused to accept Bullard as a pilot. They not only refused to believe his exploits, but the thought that a Black would be an officer, commanding whites, was anathema to them.
Bullard continued with the French, but was kicked out of the air service (probably because of insubordination), and returned to his old unit. But wounds received earlier (for which he had won the 'Croix de Guerre') kept him out of combat, and he ended the war performing menial duties.
After the war he became a night club owner, and used his bar as a place to glean information from German tourist which he passed on to French Intelligence.
When WWII broke out, he rejoined his old unit, was wounded in combat, and eventually made his way to the US where he helped raise money for the Free French. After the war he worked as an elevator operator in NY, until his death in 1961.
"For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return." - Leonardo da Vinci