UK introducing Strike brigades as the fast response to Russian threat

Eric Sof

This year, the British Army’s Strike Experimentation Group will begin exploring a mixed brigade-size fleet of tracked and wheeled armored vehicles as it continues to pursue a different approach to a ‘medium-weight’ combined-arms brigade than that adopted by the United States and French armies.

Medium-weight combined-arms brigades

The US Army and French Army have ’medium weight‘ combined-arms brigades equipped with families of wheeled armored vehicles that can move rapidly on roads over long distances. The British Army currently lacks such formations, a gap the 2015 Strategic Defence and Security Review (SDSR) identified and moved to address.

The 2015 SDSR required the UK to regenerate its military capability for large-scale warfighting. Part of this included the formation of two ’strike brigades‘, increasing the overall number of deployable army brigades from four to five. These were to be formed, in part, by ‘re-rolling’ one of the existing armored infantry brigades.

These new brigades are to be organized as follows:

  • One regiment (battalion size) of Ajax in the reconnaissance role;
  • The second regiment of Ajax in the ’medium armor role.’ This is a new concept for the British Army and sees Ajax acting as a medium-weight tank;
  • Two battalions of mechanized infantry;
  • Artillery, combat engineer, logistic and medical units.

British Strike Brigades

The strike brigades’ infantry battalions will use a yet to be procured Mechanised Infantry Vehicle (MIV), which is planned to be an existing wheeled armored personnel carrier. The army wants to introduce the MIV as soon as possible; however, a vehicle has yet to be selected, and no delivery schedule has been announced. The other major fighting vehicle for the strike brigades is the Ajax tracked armored reconnaissance vehicle. The Ajax is based on the General Dynamics ASCOD 2.

While the new wheeled MIV will offer British strike brigades’ infantry battalions a degree of mobility equivalent to similar French or US formations, the tracked Ajax vehicle, although well protected and possessing tactical cross-country mobility, is likely to travel more slowly over operational and long distances. Compared to their US and French equivalents, the UK’s strike brigades are unlikely to be able to move entire brigades as fast over longer ranges. For example, in their 2013 intervention in Mali, a French battalion equipped with the VBCI wheeled infantry fighting vehicle could cover a distance of 2,000 kilometers in five days.

In response to the worsening security environment in Europe and the emergence of Russia as a strategic rival, the 2015 SDSR placed two core requirements on the army: rebuilding its capability to field an entire division of three brigades and getting more deployable brigades out of the forces it has. The army’s only deployable division, the 3rd Division, is being re-organized from a three-brigade formation into four brigades: two existing armored infantry brigades and the two strike brigades.

Irrespective of SDSR 2015, it also appears that the number of Challenger 2 main battle tanks in front-line service will further reduce, from three battalion-sized regiments to two, with one regiment swapping its tanks for Ajax. Given the renewed importance of the tank as demonstrated in the wars in Iraq and Syria and the fighting in eastern Ukraine – and the British Army’s visible commitment to the forward defense of Eastern Europe – this could be seen as a counter-intuitive reduction anti-armor capability. But some of the risk involved is mitigated by the army funding a major life-extension program for Challenger 2 that promises to make the tanks it has more effective.

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