Complex sentence: It was ratified by the Security Council the following day under Resolution 1383; resolution 1386 confirmed the UN's commitment to the agreement by authorising an International Security Assistance Force (ISAF) to help maintain security in Kabul and the surrounding areas.
Split into simpler sentences: It was ratified by the Security Council the following day under Resolution 1383. Resolution 1386 confirmed the UN's commitment to the agreement by authorising an International Security Assistance Force (ISAF) to help maintain security in Kabul and the surrounding areas.