The two-day conference had brought together more than 200 government officials, scholars and representatives from around 20 countries and international organizations, including China, Russia, South Korea, the United Nations and the European Union.

According to Mongolian Foreign Minister Damdin Tsogtbaatar, the conference would cover five topics of opportunities and challenges in Northeast Asian security environment, cooperation and competition dynamics in the region, regional energy cooperation, humanitarian challenges in emergency situations, and perspectives for dialogue in Northeast Asia.

Initially intended to facilitate a peaceful solution to the Korean Peninsula issue, the agenda of the conference had been expanded year after year, said Tsogtbaatar.

"There should be new attempts to establish regional security regime that includes all regional states. The Ulan Bator Dialogue on Northeast Asian Security is an excellent move towards this direction," said Yuan Chong, deputy director of Institute of Japanese Studies at the China Institutes of Contemporary International Relations, at the conference.