Company provides candidates for basic courses run at the brigade's Battle School and combat arms training conducted at the Divisional Training Centre. Once the soldiers are trade-qualified, they return to their units to serve in the line company (or operational sub-unit) that is ready and equipped to deploy when called to do so. Each unit will usually deploy a reduced company of two platoons, one of these usually consisting of younger soldiers who have just passed through qualification training. The line company may be rounded out with a third platoon that is involved with retention duties such as refresher training of mature soldiers (this was once known as warrior training) and holding the non-effective strength, with the goal of returning troops back into the line. Traditionally the militia has been subdivided into district garrisons, and this system is still used as units are grouped along geographic lines into brigades for the purposes of administration, training and operations. The deployable sub unit from each regiment are often operationally tasked and grouped together by the brigade to form a composite battle group of battalion strength known as Territorial Battalion Groups for combined arms training or defence of Canada tasks in the brigade area of operations. The battle group is usually commanded by a lieutenant-colonel selected on a rotational basis from one of the brigade units. The order of battle will vary depending on the task and the available manpower but generally includes an artillery battery with 105 mm C3 Close Support Guns, several companies of truck-mounted light infantry with support weapons, an armoured reconnaissance squadron with equipped with GPMGs/LAW, and a combat engineer troop. These combat arms troops will be supported by signals, service, medical and military police combat support sub-units. The brigades are commanded by a colonel and provide a garrison for the reserve units; however, they are usually ready to contribute a battle group to the Division's Task Force and battle school candidates to the Division's Training Centre. The June 30, 2016 / Project number: 16-0209 article published in the Canadian Army News stated that the Canadian Army trains 11,000 reservists annually on courses from private to lieutenant colonel. The number of courses increased in 2014/15 from the previous year and will see a steady state in 2015/16. The CA continues to generate and train ten Territorial Battalion Groups and four Arctic Company Response Groups each year. The Army Reserve