The Electronics Training Program (ETP) was the name commonly used for an unusual, difficult, and selective training activity of the United States Navy during World War II (WWII). The ETP combined college-level classroom instruction with laboratories involving highly complex electronic systems that were classified Secret, resulting in a level of training reported to have been the most intense and difficult ever given to enlisted servicemen. A highly regarded Naval officer noted that the ETP graduates were in the top three to five percent of the Navy's wartime personnel, officers as well as enlisted men.