To mark the fifteenth anniversary of the adoption of resolution 1325 (2000), the Security Council adopted resolution 2122 (2013) inviting the Secretary-General to conduct a review with regard to the implementation of resolution 1325. The review was to identify the gaps and challenges, as well as emerging trends and priorities for action. It requested the SecretaryGeneral to thereafter submit a report based on the findings of this review to the Security Council in October 2015. The Secretary-General requested Radhika Coomaraswamy to be the lead author of the study on the recommendation of the United Nations Standing Committee on Women, Peace and Security. UN Women was requested to be the secretariat of the study. A High-Level Advisory Group was constituted from all regions of the world to assist Ms. Coomaraswamy.