Calm returns to the disputed border Tuesday as the deadliest conflict in over a decade between the two countries halted, killing at least 40 and displacing 300,000.

The Cambodian and Thai prime ministers announced on Monday in Kuala Lumpur, Malaysia, that they had agreed to a ceasefire starting at midnight.

The successful ceasefire talks between Thailand and Cambosia highlighted Asean's role as an effective mechanism in resolving regional disputes.

The current conflict between Cambodia and Thailand is a deeply troubling development in Southeast Asia. The recent clashes along the shared border between the two countries have reignited an old territorial dispute that had previously remained contained to diplomatic disagreements and minor skirmishes.

The risk of external powers exploiting the Thailand-Cambodia conflict underlines the need for the regional grouping to rethink how it operates.

A member of Commission I of the House of Representatives, Amelia Anggraini, has urged the government to take anticipatory steps, such as strengthening early

NBC 10's Dyana Koelsch reporting in Thailand on the Cambodian humanitarian crisis. (WJAR) TOPICS: Cambodia Vietnam Refugee Khmer Rouge Thai border Starvation Rhode Island Vietnamese troops.