Organizations are investing in diversity and inclusionDiversity and Inclusion policies, strategies, and programs to foster a culture of belongingCulture of belonging, social cohesionCohesion, meaningful work, commitment, improved job satisfaction and performance, and advanced creativity and innovation. Practitioners and scholars continue to examine diversity and inclusionDiversity and Inclusion through different lenses, incorporating people’s genderGender and genderGender identityIdentity, ethnicityEthnicity, race, knowledge and skills, and cultural perceptions and worldviews. Throughout the chapters in this book, the authors have illustrated how issues attributed to teamTeams diversity and inclusionDiversity and Inclusion are impacted by masculinized, hegemonic, colonial, and systemic practices that have led to fragmented working culturesCulture and unprofessional conductUnprofessional conduct (e.g., sexual misconductSexual misconduct, racismRacism, discrimination, harassment, and a lack of diversityDiversity, equityEquity, and inclusionInclusion organizational policies and practices). The authors throughout this book have called for more equitable, diverse, and inclusive policies, strategies, and programs, particularly within defence and security-based environments. In this final chapter, the author examines the interrelationships of three major factors that leaders, scholars, and practitioners need to consider in helping to establish more effective teamTeams diversity and inclusionDiversity and Inclusion in defence and security—namely, cultureCulture, personnel, and leadershipLeadership. Drawing on the issues, research gaps, and recommendations highlighted throughout the chapters of this book, the author focuses on the future insightsFuture insights and recommendations that will facilitate effective teamTeams diversity and inclusionDiversity and Inclusion (e.g., institutional analysisInstitutional analysis, mentoring, cross-cultural competence training, leadershipLeadership skills development, allyshipAllyship practices) and more holistic strategies to enable greater teamTeams diversity and inclusionDiversity and Inclusion (e.g., participatory action research or a complex adaptive systemsComplex Adaptive Systems’ approach).