Infantry, 1-60th Infantry, 1-37th Artillery, 561st Combat Engineer Company, and other components at Fort Richardson) were consolidated in 1973 with the drawdown after Viet Nam. There was an administrative split between the "LIB" (Light Infantry Brigade) and the "Brigade Alaska", with the 1-43d Air Defense, 222d Aviation, 56th MP Company, 23d Construction Engineer Company, Northern Warfare Training Center- then at Fort Greely,' being assigned. The brigade was again inactivated on 15 April 1986 at Fort Richardson, Alaska, being reflagged as part of the newly reformed 6th Infantry Division. Transformation In the late 1990s, Army leaders including General Eric Shinseki began shifting the Army force toward brigade centered operations. All separate brigades had been deactivated in the 1990s as part of the US Army's drawdown following the end of the Cold War. These inactivations, along with the subsequent reorganization of US Army divisions, saw several divisional brigades stationed in bases that were far from the division's headquarters and support units. These brigades had difficulty operating without support from higher headquarters. Light infantry is a designation applied to certain types of foot soldiers (infantry) throughout history, typically having air assault and airborne qualified members with lighter equipment or armament or a more mobile or fluid function than other types of infantry, such as heavy infantry or line infantry. Historically, light infantry often fought as skirmishers, reconnaissance, hidden shock and awe attacks, basically guerilla warfare—soldiers who fight in a loose formation ahead of the main army to harass, delay and generally "soften up" an enemy before the main battle. Today, the term "light infantry" generally refers to units (including commandos and airborne units) that specifically emphasize speed and mobility over armor and firepower, to units that historically held a skirmishing role. It was Shinseki's idea to reactivate a few separate light infantry brigades and assign them their own support and sustainment units, which would allow them to function independently of division-level headquarters. These formations were termed "Brigade Combat Teams". Such units could be stationed in bases far from major commands, not requiring division-level unit support, an advantage in places like Alaska and Europe, where stationing entire divisions was unnecessary or impractical. The first of the separate brigades was to be the 172d Infantry Brigade. On 17 April 1998, the U.S. Army reactivated the 172d Infantry Brigade (Separate) by reflagging the 1st Brigade, 6th Infantry Division headquartered at Fort Wainwright, Alaska. Two years later,