The UN under-secretary-general presented the fifteenth biannual report, dated 29 June, on Security Council Resolution 2231’s implementation. The U.S. representative told the Security Council that Iranian UAV transfers to Russia constituted “a flagrant violation of Resolution 2231”, and further asserted that “Iran’s ballistic missile activity… is an enduring threat to regional and international peace and stability”. “Iran should take actions that build international confidence and deescalate tensions, not continue nuclear provocations that pose grave proliferation risks”, he added. Iran’s UN envoy also addressed the Council, rejecting calls from some members for a Secretariat investigation into UAV transfers and maintaining that “Iran is fully determined to vigorously pursue its peaceful nuclear activities, including enrichment at various levels required, under the monitoring and verification of the IAEA”. He went on assert that “we are prepared to resume negotiations at the earliest opportunity to restore the JCPOA and ensure its full implementation by all”.