US President Donald Trump has asked to preside over the signing of a peace deal between Cambodia and Thailand when he attends the Asean Summit in Kuala Lumpur later this month, according to four government and diplomatic sources.Southeast Asia is hoping to negotiate concessions to punishing tariffs imposed by Washington when they meet in the Malaysian capital from October 26 to 28, adding significance to Trump’s request for a peace signing ceremony.At least 43 people were killed over five days...