Puerto Rican women continued to volunteer for military service during and after the war. CWO3 Rose Franco was the first Puerto Rican woman to become a Chief Warrant Officer in the U.S. Marine Corps. With the outbreak of the Korean War, Rose surprised her family by announcing that she was leaving college to join the United States Marine Corps. In 1965, Rose was named Administrative Assistant to the Secretary of the Navy Paul Henry Nitze by the administration of President Lyndon B. Johnson. 1st Lieutenant Gloria Esparra Petersen was an Army nurse at Walter Reed Army Hospital in Washington, D.C., during the War. Captain Julia Benitez Aviles was the first Puerto Rican servicewoman to obtain the rank of captain. She joined the Army Nurse Corps in 1950 and served in Occupation Germany; Washington, D.C.; Texas; and Puerto Rico as a nurse anesthetist, retiring in 1964. Lieutenant Nilda Carrulas Cedero Fuertes joined the Army Nurse Corps in 1953, serving on active duty until 1964. She then joined the Reserves, where she served until 1990. Among her assignments in the military was teaching the latest modern nursing techniques to Nicaraguan Army nurses while TDY (on temporary duty) in Nicaragua for six months.