How do you become a diplomat? 

Becoming a Foreign Service Officer (FSO) is one way to serve as an American   diplomat . While there is no specific academic degree or professional experience required to become a FSO, all applicants must undergo a  rigorous selection process . 

This consists of a written Foreign Service Officer Test, a written personal narrative, an oral interview combined with role playing exercises, and a medical and security clearance review.The application then goes to a Suitability Review Panel for one last look before an applicant’s name is placed on the Registrar of selected candidates eligible to be offered a position in the U.S. Foreign Service.