Maj Gen Keating is the Chief of Staff of the Allied Rapid Reaction Corps (ARRC) a NATO Headquarters held at high readiness to deploy in crisis and conflict at the direction of the Supreme Allied Commander Europe (SACEUR). The ARRC is a British-led headquarters of ~400 personnel, to which 21 NATO member states contribute staff officers. Prior to this role, Maj Gen Keating served as the Deputy Commanding General-Manoeuvre for the United States Army's 3rd Armoured Corps at Fort Cavazos, Texas, and the Chief of Defence Staff's Liaison Officer to the Chairman of the Joint Chiefs of Staff in Washington DC.