1 . The present, fifteenth, report is submitted pursuant to paragraph 17 of Security Council resolution 2139 (2014), paragraph 10 of Council resolution 2165 (2014) and paragraph 5 of Council resolution 2191 (2014), in which the Council requested me to report, every 30 days, on the implementation of those resolutions by all parties to the conflict in the Syrian Arab Republic.
2 . The information contained herein is based on the data available to United Nations agencies on the ground and reports from the Government of the Syrian Arab Republic and from open sources. Data from United Nations agencies on their humanitarian deliveries are reported for the period 1 to 30 April 2015. More recent data have been included, when available.