The Department of Homeland Security (DHS) is seeking vendors to participate in the Counter Unmanned Aircraft Systems (C-UAS) Capability Optimization Research Environment (CORE) II, an initiative aimed at optimizing C-UAS technologies through international collaboration. Vendors are required to provide integrated C-UAS solutions capable of detecting, tracking, and identifying Group 1 and 2 unmanned aircraft systems (UAS), with applications in areas such as prison security, critical infrastructure protection, and event security. The total unit cost for the proposed solutions must not exceed $250,000, covering all necessary hardware, software, and operational components. Interested vendors should submit their proposals by the specified deadline to Jason Rios at jason.rios@hq.dhs.gov or Mohammed Rizki at mohammed.rizki@hq.dhs.gov, with the demonstration event scheduled for May 12-16, 2025, at Fort Wolters National Guard Base in Mineral Wells, Texas.