This is a five-year, closed Broad Agency Announcement (BAA) for High Power Electromagnetics modeling and effects research for the Air Force Research Laboratory. Work will be solicited through subsequent, unrestricted "CALLs" issued at various times on SAM.gov for specific project requirements. The Government may issue multiple, sequential, or concurrent CALLs but is not obligated to issue any. No specific budget, performance location, or non-bid timelines are detailed in this base announcement.