For decades, the smallest permanent combined-arms formation in the Soviet and later Russian army was the regiment. Today, that structure has been replaced by a smaller, more flexible unit: the battalion tactical group, or BTG.
This shift represents a fundamental change in Russian military doctrine, moving away from the Cold War-era reliance on large, fixed regiments toward a force designed for rapid, self-contained deployment. A BTG is not a standing unit but a temporary formation built around a mechanized infantry battalion. It is typically drawn from a garrisoned army brigade, which provides the core infantry elements and then reinforces them with additional combat and support assets. A standard BTG comprises two to four mechanized infantry companies, reinforced with a tank company, artillery, air-defense systems, engineering units, and logistical support.
The result is a combined-arms force of approximately 600 to 800 officers and soldiers. Of that total, roughly 200 are infantrymen.
The unit is equipped with about 10 tanks and 40 infantry fighting vehicles, giving it significant offensive punch for its size. These formations were the mainstay of Russia’s military intervention in Ukraine from 2013 to 2015, particularly in the war in Donbas. In August 2021, Russia’s defense minister stated that the country had about 170 BTGs, each kept at high readiness.
This large number of deployable groups signals a military that values quick response over mass mobilization.
From Soviet Regiments to Modern BTGs
The trend toward battalion tactical groups is the result of a long evolution in Russian military thinking. During the Cold War, the Soviet Army used maneuver regiments as the smallest permanent combined-arms force. Battalions were pure formations–either tank or motorized rifle–and did not have their own organic artillery, air defense, or engineering support. Temporary combined-arms groupings were formed only during field exercises.
By 1987, the term “battalion tactical group” was used to describe these ad-hoc combined-arms battalions, and the concept was tested in the Soviet–Afghan War. A plan called “Division 87” proposed making a tank company a permanent part of every motorized rifle battalion, but the experiment was abandoned.
The reasons were twofold: the cost was too high, and there was a shortage of experienced junior commanders to lead such complex units. After the dissolution of the Soviet Union, the Russian Ground Forces faced severe shortages of both manpower and equipment. During the First and Second Chechen Wars and the 2008 Russo-Georgian War, the army again formed ad-hoc BTGs out of necessity.
These were not planned, permanent units but temporary expedients created to make the most of limited resources.
The Reform That Stuck
The turning point came after the 2008 war with Georgia. In October 2008, the Ministry of Defence announced a major reform to create “permanent readiness” brigades.
This plan shifted after a change in leadership. In November 2012, Sergei Shoigu replaced Anatoliy Serdyukov as defense minister. The new approach was to form “permanent readiness” BTGs within garrison brigades.
These units were planned to be 100% staffed by contract soldiers, rather than conscripts, ensuring a higher level of training and readiness. What is changing now is the scale.
With about 170 BTGs claimed in 2021, the Russian military has moved away from the old regimental system. The BTG is no longer a temporary expedient used only in times of crisis. It has become a core maneuver unit for a military that values rapid response.
Each BTG is kept at high readiness, meaning it can be deployed quickly as a self-contained fighting force. Understanding the BTG’s structure and history helps readers grasp the kind of force Russia can deploy quickly, as well as the constraints that come with relying on temporary, composite units rather than standing combined-arms regiments.
While the BTG offers flexibility and speed, its temporary nature means that units must be assembled and trained together each time, which can create challenges in cohesion and command. Nonetheless, the BTG has become the standard combat formation for Russia’s military operations, and its widespread adoption marks a clear departure from the Soviet past.
