Lithuania, Poland and Ukraine established a joint military unit, LITPOLUKRBRIG, upon the signature of an establishment agreement by the three countries’ Defence Ministers on 19 September 2014 in Warsaw. The Brigade comprises of an international staff, three battalions, and specialised units. Lithuania, Poland and Ukraine each assign an infantry battalion, and personnel for special-purpose units and the LITPOLUKRBRIG staff. The Lithuanian contribution to the LITPOLUKRBRIG is formed from the personnel of the Grand Duchess Birutė Uhlan Battalion.
The LITPOLUKRBRIG personnel participate in joint training and exercises, the Brigade or its elements will be deployed to international operations mandated by the United Nations Security Council, while decision regarding deployment of the LITPOLUKRBRIG to international operations will be made by general consent of all the establishing countries. The LITPOLUKRBRIG battalions are held on standby in their home countries, and deploy in composition of LITPOLUKRBRIG in case a decision is made to activate the Brigade or any of its elements. The Brigade headquarters and staff are located in Lublin, Poland.