This research argues that the underlying problems behind the integration of women into the military lie in the hegemonic masculinity that embodies the institution as a whole. The research begins by theoretically outlining how this hegemonic masculinity takes form in institutional structures and how it constructs masculinised gender configurations. This is used as a foundation for an exploration of the practical dimensions of how hegemonic masculinity hampers the integration of women. The research finds that symbolism, language, and actions within the institution of the military are construed around hegemonic masculinity and that this is fundamentally obstructing the integration of women into the military, which has major Civil-Military and political implications on the current security context of Europe.