In the

Canadian Forces The Canadian Armed Forces (CAF; , FAC) are the unified Military, military forces of Canada, including sea, land, and air commands referred to as the Royal Canadian Navy, Canadian Army and the Royal Canadian Air Force. Under the ''National Defenc ...

, lieutenant-colonel (LCol, or ) is a rank for officers who wear army or air force uniform. It is equivalent to

commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...

for officers who wear navy uniform and is the second-highest rank of senior officer. A lieutenant-colonel is senior to a

major Major most commonly refers to: * Major (rank), a military rank * Academic major, an academic discipline to which an undergraduate student formally commits * People named Major, including given names, surnames, nicknames * Major and minor in musi ...

or lieutenant-commander, and junior to a

colonel Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th, and 19th centuries, a colon ...

or naval

captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...

. The rank insignia for a lieutenant-colonel on air force uniforms is three 1-cm stripes of braid, worn on the cuffs of the service-dress jacket, and on

slip-on A shoulder mark, also called a rank slide or slip-on, is a flat cloth sleeve worn on the shoulder strap of a uniform. It may bear rank or other insignia. A shoulder mark should not be confused with a (an elaborate shoulder strap), a (a brai ...

s on other uniforms. On army uniforms, the rank insignia is one pip and a crown. Lieutenant-colonels are addressed by rank and name and thereafter by subordinates as "Sir" or "Ma'am". In the

Canadian Army The Canadian Army () is the command (military formation), command responsible for the operational readiness of the conventional ground forces of the Canadian Armed Forces. It maintains regular forces units at bases across Canada, and is also re ...

, lieutenant-colonels are often employed as commanding officers of

battalion A battalion is a military unit, typically consisting of up to one thousand soldiers. A battalion is commanded by a lieutenant colonel and subdivided into several Company (military unit), companies, each typically commanded by a Major (rank), ...

-sized groups, such as

infantry Infantry, or infantryman are a type of soldier who specialize in ground combat, typically fighting dismounted. Historically the term was used to describe foot soldiers, i.e. those who march and fight on foot. In modern usage, the term broadl ...

battalions, armoured regiments,

artillery Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...

field regiments,

engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...

field regiments,

signal A signal is both the process and the result of transmission of data over some media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processing, information theory and biology. In ...

regiments, field ambulances and service battalions. In the

Royal Canadian Air Force The Royal Canadian Air Force (RCAF; ) is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environmental commands within the unified Can ...

, lieutenant-colonels are often the commanding officer of flying or ground squadrons. Before unification of the Canadian Forces in 1968, rank structure and insignia followed the British pattern. File:Canadian_Army_OF-4.svg, Dress uniform tunic Image:5 LTCOL DEU(SHIRT).png, Uniform shirts File:CA-Army-OF4.gif, Olive green uniforms (old insignia) Image:CADPAT temperate LCol.png, CADPAT uniform (old insignia) Image:CADPAT arid LCol .png, Arid-region CADPAT uniform (old insignia) File:Canadian_RCAF_OF-4.svg, Dress uniform tunic Image:Air Force slip-on LCol.png, Uniform shirts (old insignia) Image:Air Force olive LCol.png, CADPAT uniform

References

Military insignia Military ranks of Canada {{Canada-mil-stub fr:Lieutenant-colonel#Canada