US President Donald Trump co-signed a truce between Thailand and Cambodia during the first stop on his Asia tour on Sunday, touting new trade deals with the countries after they agreed to prolong a ceasefire along their border.

Five days of clashes erupted along Thailand and Cambodia's jungle-clad frontier this summer, as a territorial dispute triggered open combat, killing more than 40 people and forcing 300,000 to flee their homes.

Thailand and Cambodia agreed an initial truce in late July after intervention by Trump, as well as Chinese diplomats and Malaysian Prime Minister Anwar Ibrahim, who chairs the Association of Southeast Asian Nations (ASEAN) bloc.

A new joint declaration was signed by Thai Prime Minister Anutin Charnvirakul and Cambodian Prime Minister Hun Manet, as well as T

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