What are IBGs? IBGs are brigade-sized, agile, self-sufficient combat formations, which can swiftly launch strikes against an adversary in case of hostilities. The Army is awaiting a report on the recent IBG-styled exercise carried out by the Mountain Strike Corps in Arunachal Pradesh, a development. Integrated Battle Groups or IBGs are agile, brigade-sized, self-sufficient combat formations. The Army's new concept of agile Integrated Battle Groups (IBG) as part of the overall force transformation will be operationalised very soon, Army. This video includes: -Integrated Battle Groups -Composition of Integrated Battle Groups -How. Army's new concept of agile Integrated Battle Groups (IBG).