Military couple relationships have a number of risk and protective factors that set them apart from civilian couples. Financial and job security, subsidised housing and healthcare, and cost-free support services provide advantages to military couples. On the other hand, frequent relocations, separations, and deployments are associated with social and employment difficulties for spouses, emotional disconnection, trauma-related health problems, and relationship distress. These factors give military couples a distinctive risk and resiliency profile that might make them ideal candidates for relationship education (RE). RE programs need to be tailored to address the special needs of military couples, to ensure content is seen as relevant, and delivered in a format that increases access and flexibility within the unpredictable military lifestyle. This dissertation makes the case for military RE, presenting best practice recommendations for tailoring interventions for use with this special population. Cross-sectional research was conducted to investigate the role of communication and dyadic coping in military couple relationships, to test key assumptions that underpin the design and content of military RE. Communication was found to partially mediate the association between trauma symptoms and relationship satisfaction, with findings suggesting that communication normally considered negative might be adaptive in some couples. Common dyadic coping, in which couples work together to develop strategies to cope with stress, was found to be associated with relationship satisfaction. The implications of these findings for military RE are discussed. A military-specific adaptation of the Couple CARE program, Couple CARE in Uniform, was developed and tested by randomised controlled trial with a sample of 32 Australian military couples, against a self-directed reading control. Couples saw reliable improvement in relationship satisfaction and communication, however no difference was found between the two conditions.