TheCenterforStrategicandBudgetaryAssessments(CSBA)2021AnnualReportprovidesacomprehensiveoverviewoftheorganization'sresearchactivities,budgetaryanalyses,andstrategicrecommendationsforU.S.defensepolicy.ThereporthighlightskeychallengesfacingU.S.nationalsecurity,includinggreatpowercompetitionwithChinaandRussia,emergingtechnologies,andevolvingmilitaryrequirements.ItalsodetailsCSBA'scontributionstodefensedebatesthroughpublications,congressionaltestimonies,andexpertengagements.Theannualreportservesasavaluableresourceforpolicymakers,militaryleaders,anddefenseanalystsseekingdata-driveninsightsintocurrentandfuturesecuritychallenges.