Leiutenant Colonel

Common military ranks in English
Navies	Armies	Air forces
Commissioned officers
Admiral of the fleet	Field marshal or General of the army	Marshal of the air force
Admiral	General	Air chief marshal
Vice admiral	Lieutenant general	Air marshal
Rear admiral	Major general	Air vice-marshal
Commodore	Brigadier or brigadier general	Air commodore
Captain	Colonel	Group captain
Commander	Lieutenant colonel	Wing commander
Lieutenant commander	Major or Commandant	Squadron leader
Lieutenant	Captain	Flight lieutenant
Lieutenant junior grade or sub-lieutenant	Lieutenant or first lieutenant	Flying officer
Ensign or midshipman	Second lieutenant	Pilot officer
Officer cadet	Officer cadet	Flight cadet
Enlisted grades
Warrant officer or chief petty officer	Warrant officer or sergeant major	Warrant officer
Petty officer	Sergeant	Sergeant
Leading seaman	Corporal or bombardier	Corporal
Seaman	Private or gunner or trooper	Aircraftman or airman
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Lieutenant colonel is a rank of commissioned officer in the armies, most marine forces and some air forces of the world, above a major and below a colonel. The rank of lieutenant colonel is often shortened to simply "colonel" in conversation and in unofficial correspondence. Sometimes, the term, 'half-colonel' is used in casual conversation in the British Army. A lieutenant colonel is typically in charge of a battalion in the army.

The following articles deal with the rank of lieutenant colonel (or its equivalent)

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Wikipedia