Women’s roles, rights, and responsibilities within the United Kingdom (UK) Armed Forces have changed substantially since the First World War. The unique challenges faced by female personnel have previously been an understudied topic. As the percentage of female personnel in the military increases, the concept of motherhood in the military has acquired a higher profile. This chapter outlines the experiences of being a military mother. It begins with a brief review of the pressures faced by servicewomen and a short historical account of the evolution of women’s participation in the UK Armed Forces. This is followed by description of the main military demands (readiness, retention, relocation, and deployment) and their interaction with the demands of motherhood (regaining postpartum fitness, coping with dual identities, maternal separation anxiety, and childcare concerns). Findings from the United States (US) Armed Forces and UK civilian studies are used for comparison.