Delta Phi Epsilon () 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. History Fraternity The fraternity was founded in the wake of World War I, in a time of increased interest in world politics and solving global issues with diplomacy. In 1919, Fr. Edmund A. Walsh, S.J. at Georgetown University founded the School of Foreign Service (SFS) and in 1924, the Rogers Act formed the basis of the United States Foreign Service. During this time, other groups with similar missions, such as the Council on Foreign Relations, were founded, along with international bodies such as the League of Nations. The four founders of the fraternity were Alfred O. Arseneau, Wesley O. Ash, Samuel C. Bartlett, and T. J. Patrick O'Connell. At first, three of them, all undergraduates in Georgetown's SFS living together on 10th Street, held in common only their experience in overseas military service and their interest in foreign service careers. Soon they met the fourth, Pat O'Connell, who thought of founding a foreign service fraternity independently. They were drawn together by their common vision for a professional foreign service fraternity for future graduates of the School of Foreign Service and others in the field. Later these men joined with seven other interested undergraduates (future brothers Sandager, Butts, Ash, MacKenzie, Brooks, Sullivan, Scott, and Bates) and signed the Articles of Agreement. After choosing a name and nominating officers, Delta Phi Epsilon Foreign Service Fraternity was formally founded at the Catholic Community House at 6th and E Streets, NW, on January 25, 1920. The group was incorporated in the District of Columbia on April 20, 1920. Early expansion focused on both East and West Coast schools. The fraternity's activities and expansion ceased during World War II. After the war, the fraternity saw even greater expansion into institutions across the United States. and