This series of research papers examines emerging issues and challenges in peace operations. The observatory has focused on new technologies for peacekeeping (2015); the challenges of peace operations operating in violent and asymmetric threat environments (2016); field support for peace operations (2017); contemporary challenges to peace operations (2018); non-UN peacekeeping operations (2019); the prevalence of—and UN responses to—post-traumatic stress disorder (PTSD), trauma, and mental health issues affecting the personnel of UN peace operations (2020); independent strategic reviews of UN peace operations (2021); and climate, peace, and peace operations (2022). IPI plans to focus on the topic of new technologies in peace operations for the 2023 cycle of the Peacekeeping Observatory project.