To commemorate the 20th anniversary of United Nations Security Council Resolution 1325, the William J. Perry Center for Hemispheric Defense Studies and US Southern Command published an edited collection of essays, Twenty Years, Twenty Stories: Women, Peace, and Security in the Western Hemisphere, that reflect the inclusion of women across mission areas including cyber, peacekeeping, and humanitarian assistance and disaster relief. This book elevates the voices of talented women and men working in defense and security across the Western Hemisphere and highlights Perry Center alumni.