With the new strategic reality of war in Europe and the inclusion of all Nordic countries in NATO, strengthening Nordic defense cooperation must explicitly consider gender equality and Women, Peace and Security (WPS). This ensures legitimacy and diverse voices in national and regional defense debates, enhances public awareness and engagement, enables mobilization, and grant insights into population security implications. Building on NATOs WPS policies, this brief discusses areas for enhanced Nordic collaboration: integrating WPS in national defense, practicing inclusion by recruiting and retaining women military personnel, and integrity focusing on work environments and Codes of Conduct.