Welcome to a new year and the latest iteration of the Journal. In this addition, we address Challenges to CivMil integration. Some of these challenges include: limited available time for civilian training; incomplete understanding of required knowledge and skill sets; varied deployment schedules; the inability to build Unity of Purpose; and a lack of emphasis on pre-deployment training from senior departmental leadership. To succeed in complex operations, U.S. governmental departments and our partners must institutionalize an education and training construct that provides the necessary knowledge and skills to support CivMil integration, while maximizing the capabilities of each organization. Articles in this edition provide perspectives on developing a comprehensive senior leader development program for Peace and Stability Operations (PSO) and the incorporation of Lessons Learned into curriculum.