This article originally appeared in History of War magazine issue 149. The border clashes between Thailand and Cambodia in July 2025 originate in the region's colonial era over a hundred years ago. At least 12 Thai nationals and an unknown number of Cambodians were killed during the fighting,

A threat by President Donald Trump to halt trade negotiations with both Cambodia and Thailand until a truce had been reached forced both sides to the negotiating table. Even so, the ceasefire looks shaky.

Vietnam is concerned about the current escalation of tensions in the border area between Cambodia and Thailand, spokesperson of the Ministry of Foreign Affairs Pham Thu Hang said on July 24.