ABMS, its Internet of Military Things, and JADC2 were important parts for Dynamic force employment (DFE) in the Joint All-domain Operations Concept. The Combatant commanders at Eucom, and at IndoPacom seek the AGM-183A (ARRW) hypersonic weapon on the bomber fleet for Dynamic force employment. In light of the 2022 Russian invasion of Ukraine, thousands more troops have posted or rotated to Europe. As of February 2023 the US is planning a HIMARS training center in Poland. In order to get 31 Abrams tanks to Ukraine, the Army is weighing options with the fastest delivery times, none of which are sooner than year-end 2023. Force size and unit organization Overall, the Army would end up with 71 brigade combat teams and 212 support brigades, in the pre-2013 design. The Regular Army would move from 33 brigade combat teams in 2003 to 43 brigade combat teams together with 75 modular support brigades, for a total of 118 Regular Army modular brigades. In addition the previously un-designated training brigades such as the Infantry Training Brigade at Fort Benning assumed the lineage & honors of formerly active Regular Army combat brigades. In 2017 there were 31 brigade combat teams in the Active Army. Within the Army National Guard, there were to be 28 brigade combat teams and 78 support brigades. Within the Army Reserve, the objective was 59 support brigades. (39th Chief of Staff Mark Milley credits the 27th Chief, Creighton Abrams, for placing most of the support brigades in the Reserve and National Guard, in order to ensure that the nation would use the total army, rather than only the active army alone, in an extended war involving the entire nation.) The Reserve component will be playing an increased role. In the Total Army, 8 ARNG divisions are to be trained to increase their readiness for large-scale combat operations, making 58 BCTs in the Total Army in 2018, and 6 SFABs in 2020. Army commands United States Army Forces Command headquartered at Fort Bragg, North Carolina United States Army Futures Command headquarters in Austin, Texas United States Army Materiel Command headquartered at Redstone Arsenal, Alabama United States Army Training and Doctrine Command headquartered at Joint Base Langley-Eustis, Virginia Army service component commands Geographic commands United States Army Central / Third Army headquartered at Shaw Air Force Base, South Carolina United States Army North / Fifth Army headquartered at Joint Base San Antonio, Texas