President Donald Trump said he called the leaders of Thailand and Cambodia to urge them to stop the fighting that erupted earlier this week, warning he wouldn’t make a trade deal with either country while the conflict continued.

A fierce border conflict between Cambodia and Thailand has escalated, resulting in significant casualties and displacement. International concern has grown, prompting intervention from US President Donald Trump,

The deadly conflict on the Thai-Cambodian border pits a longtime United States ally with decades of experience against a relatively young armed force with close ties to China.

"The U.S. already flunked the test and that should be a wakeup call," a former senior U.S. State Department official told Newsweek.

Cambodia is calling for a ceasefire with Thailand following cross-border fighting over territorial claims related to temples, which has resulted in 15 deaths and dozens of injuries. Over 130,000 Thai residents from border areas have been evacuated.