Within the scope of the problem over this new era, armed conflict becomes the most challenge issue which concerns by international actors. As occurring during the interwar era, the conflict between the government and anti-government have considered as a significant issue which reflecting on international attention to give a hand to interevent and assist the conflict states. Since the armed-conflict has considered as one of the most challenge and concern problem, the UN and other international organization intervention the conflict state under the International Humanitarian Law. One of the most significant actors in playing the humanitarian intervention role is the UN Security Council. The whole dissertation has been explained the first intervention of the United Nations Security Council (UNSC) in Afghanistan and Syria from the second chapter until the last chapter. The main issue over the armed conflict in Afghanistan and Syria is both countries cause the serious violation to innocent people, the large scale of people dead including children and vulnerable, the failure of government who fail to secure the country. Within chapter III, there is an elaboration of international and national legal framework which government right of victim, the non-combatant who does not take part in hostilities, international convention like Geneva Convention (I, II, III & IV), Additional Protocol (I & II), and other international convention which regulate the rightful of victim of war. In order to help both states the UN Security Council have implemented the UN Security Council Resolution which is the United Nations Assistant Mission in Afghanistan (UNAMA) and the United Nations Supervision Missions in Syria (UNSMIS), these two organs play a significant role in assisting the humanitarian help in Afghanistan and Syria. However, these two organs do not have any function to prosecute any perpetrator who violates international criminal law, so the role of the International Criminal Court is effectively prosecuting those criminals who liability for them. The court jurisdiction of the ICC was explained in chapter five, where is the principle of complementarity the national court is unable and unwilling to persecute the case, ICC can be the criminal court to prosecute those perpetrators. Afghanistan case is already brought the case to prosecute the case at International Criminal Court, after the preliminary investigation the court move to the second step of (VPRS) Victims Participation and Reparations Section. However, the main criticism of the court is only the court proceeding taking a long time, and the perpetrator is involved with the foreign actors who bring the ICC procedure in Afghanistan found difficulty on the way of court prosecution. In contrary to Syrian case, it far different from Afghanistan because Syria is not the member of the ICC, and the UNSC referral case to ICC was fail because of the veto power from China and Russia in 2014. Currently, Syria is remaining in the primary challenge for international to deal with this problem. However, the international still keeping pressuring by imposing the economic sanction which explains in chapter six by the U.S, China, Russia, and another powerful country. The conclusion to this problem which drawn in the last chapter, chapter seven. The possible implementation in dealing both issues of these two-armed conflict states Afghanistan and Syria, the proposal which could be the keystones to lead the way out for Syria and Afghanistan problem.