The Ordnance Corps Association (OCA) is a non-profit organization with the mission of promoting, enhancing and preserving the legacy of the third largest branch in the U.S. Army. The OCA supports the development, production, acquisition and support of weapon systems, ammunition, munitions/missiles, and maintenance support materiel. The OCA focuses special attention on the role of the Ordnance Corps and its Soldiers in the execution of their core competencies building Army strategic readiness and sustaining land warfare dominance.