Delta Phi Epsilon (ΔΦΕ) or Delta Phi Epsilon Foreign Service Council the largest national American professional foreign service fraternity and sorority. Founded on January 25, 1920, it was the first fraternity dedicated to careers in foreign diplomacy in trade. Its Alpha chapter went on in the first half of the twentieth century to colonize new chapters at many other universities throughout the country, although most chapters went defunct in the latter half of the century. In 1973 Delta Phi Epsilon Foreign Service Sorority was founded, with its Alpha chapter at Georgetown University. As of 2021, there remained ten active collegiate chapters, half of which were created between 2016 and 2018.

Don Carlos Faith Jr. was an officer in the United States Army during World War II and the Korean War. He was posthumously awarded the Medal of Honor for his actions in Korea from November 27 through to December 1, 1950. In 1976 Faith was posthumously inducted into the U.S. Army Officer Candidate School Hall of Fame at Fort Benning, Georgia.