army combat surveillance school
41United States Air Force Security Forces — Security Forces Badge Active As Military Police (1942 1948) …
42David Petraeus — Director of the Central Intelligence Agency …
43Cross City Air Force Station — Cross City Army Airfield   …
44Sri Lanka Navy — Insignia Active December 9, 1950–present Country …
45History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
46Cecil Lee Clark — Lieutenant Colonel Cecil Lee Clark (born 1961) is a native of Gilliam, Louisiana but grew up just outside Blanchard, Louisiana. He is notable for his contributions in the publishing of the U.S. Army Marine Corps new Counterinsurgency Field Manual …
47Pakistan Air Force — For other uses, see PAF (disambiguation). Pakistan Air Force Pakistan Air Force Ensign Founded 14 August 19 …
481st Reconnaissance Squadron — Infobox Military Unit unit name= 1st Reconnaissance Squadron caption= Emblem of the 1st Reconnaissance Squadron dates= March 5, 1913 country= United States of America allegiance= United States of America branch= United States Air Force type=… …
49Underwater Demolition Team — Underwater Demolition Teams Shoulder sleeve patch of the Underwater Demolition Teams Active …
50Orlando Executive Airport — USGS aerial photo as of 28 February 1999 IATA: ORL – ICAO: KORL – FAA LID …
