Thai Prime Minister Abhisit Vejjajiva has called for a peaceful solution, but warned that Thai soldiers would always defend Thai sovereignty if attacked.

BBC: Thai-Cambodia border fighting enters fourth day

Attempts to negotiate a political solution failed and on 19 May Thai troops entered the protesters' sprawling camp to end their rally.

BBC: UN calls for Thai clashes inquiry

In a confidential dialogue process facilitated by the Centre for Humanitarian Dialogue since 2006, the two sides could only agree that lasting peace in the Thai south depended on Malaysia buying into the solution.

WSJ: Michael Vatikiotis: Malaysia the Moderate Peacemaker

Given that Thailand has, belatedly, done nearly everything that was asked of it without dispelling the economic gloom, some Thai politicians are arguing that the region's woes now need a regional, or better still global, solution.

ECONOMIST: East Asia