The 5th Squadron was organized as the 5th Aero Squadron in 1917 at Kelly AAF, Texas. It served as a flying training unit in the continental U.S. during World War I.

In 1921 the suffix Observation was added to its designation. Between June and September 1921, the squadron participated in the demonstration aerial bombardment of warships.

In 1923 it was designated as the 5th Observation Squadron. On March 1, 1935 it was redesignated the 5th Bombardment Squadron.

Information taken from the book, 9th Bomb Group History


5th Squadron Table of Contents