Women’s groups have worked diligently to place gender and women’s vulnerability on the transnational security agenda. This article departs from the idea that negotiating and codifying gender and women’s vulnerability in terms of security represent a challenge to mainstream security contexts. By contrasting the UN Security Council resolutions on women, peace and security with feminist theory, this article aims to analyze what is considered to be threatened when women’s vulnerability is negotiated. The article identifies two approaches to the gender/security nexus: gendering security, which involves introducing ideas regarding gender-sensitive policies and equal representation, and securitizing gender, which proceeds by locating rape and sexual violence in the context of war regulations. We demonstrate that, although these measures are encouraged with reference to women’s vulnerability, they serve to legitimize war and the male soldier and both approaches depoliticize gender relations.