Addressing sexual and gender-based violence (SGBV) is paramount to security. Around the globe, violent extremist actors—from ISIL to lone gunmen—have committed atrocities against women. Societies or individuals with a history of SGBV, thus, serve as an indication of the potential for more widespread or continued violence. To ensure security for all, it is important to devote resources toward ending SGBV. Over the past fifteen years, there has been growing attention to wartime SGBV as a broader part of the women, peace, and security agenda, signified by nine UN Security Council Resolutions. There have also been increasing attempts to prosecute rape as a war crime and crime against humanity at the International Criminal Court. The new U.S. administration entering office in January 2017 should build on this momentum and expand efforts to protect women and girls, men and boys from SGBV globally and at home.