Top diplomats from Southeast Asia will meet on Monday in Malaysia to end violent clashes between Thailand and Cambodia. The fighting along their border has killed at least 41 people and forced close to one million to flee their homes. The diplomats want to revive a ceasefire originally agreed in July. That ceasefire was brokered by Malaysia as ASEAN chair and US President Donald Trump. This will be the first meeting of Thailand and Cambodia since fighting restarted on December 8. Both countries blame each other for the new violence. The conflict dates back more than 100 years to border draws after French rule in Cambodia. Recent clashes include artillery fire and Thai air strikes on Cambodian forces along the 800 km border. Malaysian Prime Minister Anwar Ibrahim, who helped sign the July ceasefire with Trump, said he is “cautiously optimistic” about the Monday talks in Kuala Lumpur. He said, “Our duty is to present the facts, but more importantly, to press upon them that it is imperative for them to secure peace.” Cambodia says the talks aim to restore “peace, stability and good neighbourly relations” and will push for peaceful solutions. Thailand calls the meeting a key chance but demands Cambodia declare a ceasefire first, and wants a “genuine and sustained” ceasefire. The US and China also try to help. US Secretary of State Marco Rubio spoke by phone with Thailand’s foreign minister last Thursday. He hopes for a new ceasefire by Monday or Tuesday. China’s envoy Deng Xijun visited Phnom Penh last week and pledged China will keep supporting peaceful talks between the two nations.