In 1909, Robbins began his nearly twenty-five year career with the State Department when he became a secretary on the staff of Charles Page Bryan, the United States Ambassador to Portugal.
In subsequent years, he would work in a lower-level diplomatic function, including for Charles Sherrill in Argentina in 1909, France in 1911, and Guatemala in 1914.
Robbins received the decoration of Chevalier de l'Ordre de Leopold from the Belgian government for the service rendered to the mission.

In 1916, he was briefly assigned to the Department of State's Division of Latin American Affairs before returning to Argentina in 1917 and then on to Chile in 1919.
In 1921, he was promoted as Chief of the Division of Near Eastern Affairs, before serving in Germany (1922) and Italy (1925).

In 1929, he was elevated to Minister and given his first post as Chief of Mission, in Salvador. (
The country would change its name to El Salvador while he was at that post.)
In 1930, he was made a White House ceremonial officer and, in 1931, was reassigned to the State Department as Chief of Protocol of the United States.
In this role, he was responsible for greeting foreign dignitaries and other ceremonial duties.

In 1933, Robbins was assigned as Chief of Mission to Canada, a position he held until shortly before his death.
In 1909, Robbins began his nearly twenty-five year career with the State Department when he became a secretary on the staff of Charles Page Bryan, the United States Ambassador to Portugal. In subsequent years, he would work in a lower-level diplomatic function, including for Charles Sherrill in Argentina in 1909, France in 1911, and Guatemala in 1914. Robbins received the decoration of Chevalier de l'Ordre de Leopold from the Belgian government for the service rendered to the mission.
In 1916, he was briefly assigned to the Department of State's Division of Latin American Affairs before returning to Argentina in 1917 and then on to Chile in 1919. In 1921, he was promoted as Chief of the Division of Near Eastern Affairs, before serving in Germany (1922) and Italy (1925).
In 1929, he was elevated to Minister and given his first post as Chief of Mission, in Salvador. (The country would change its name to El Salvador while he was at that post.) In 1930, he was made a White House ceremonial officer and, in 1931, was reassigned to the State Department as Chief of Protocol of the United States. In this role, he was responsible for greeting foreign dignitaries and other ceremonial duties.
In 1933, Robbins was assigned as Chief of Mission to Canada, a position he held until shortly before his death.
Warren Delano Robbins