This thesis contributes to our understanding of cognitive interoperability by explor-ing barriers, facilitators, and contextual factors to create a framework. With the ad-vent of the cognitive domain in warfighting, the adversary pursuit of military strate-gic advantage through cognitive science demands that we seize the initiative and seek cognitive superiority with allies and partners. Prior research acknowledges the importance of human interoperability but is limited to singular studies at the opera-tional and national level. This thesis shifts focus to the military strategic and multi-national level to uncover cognitive and cultural inhibitors and enablers of cognitive interoperability. The empirical data is drawn from a distinct case study that examines senior military officers during a combined exercise. The analysis explores compe-tencies that foster strategic empathy and collective intentionality with identity and human connectivity as major catalysts. Individuals are agents who collectively con-struct cognitive interoperability, setting conditions for cognitive dominance in future military competition.