The 2nd International Conference on Disarmament and Non-Proliferation kicked off here Sunday in presence of Iranian Foreign Minister Ali-Akbar Salehi. The international event is planned to review the existing challenges of disarmament and weapons of mass destruction, according to Iranian (IRNA) News Agency. The existence of the Zionist regime\'s nuclear arsenal in the region has seriously endangered the future of both Middle East and North Africa. Reviewing nuclear doctrines adopted by different world states, discussing international commitments regarding elimination of weapons of mass destruction as well as presenting proposals for disarmament will be among major issues to be discussed during three experts meetings of the two-day conference. A number of foreign envoys residing in Tehran and experts from 40 world countries are taking part in the ongoing event. Representatives from several international bodies including the United Nations, the Organization of the Islamic Conference (OIC), and the International Atomic Energy Agency (IAEA) are also present in the conference.