WASHINGTON — The Department of Defense is slated to release its counter-small unmanned aircraft systems strategy next month, bringing an open-system architecture and enterprise approach to the military’s capabilities.The Army-led Joint C-sUAS Office, or JCO, has worked to align current and future counter-drone technologies to support operational requirements at home and abroad, said Maj. Gen. Sean A. Gainey, the program’s director.The increased threat posed by drones, combined with a lack of dependable networked capabilities to counter the unmanned threat, has created a concerning “tactical development” within U.S. Central Command’s area of responsibility, Gainey said, paraphrasing a recent statement made by its commander.Classification of unmanned aircraft systems is divided into five category groups. The defense secretary appointed the Army as the executive agent for counter-small UAS groups one through three, said Col. Richard Wright, the JCO deputy director.These first three categories represent smaller, low-cost drones, whose rapid proliferation can threaten personnel