BANGKOK – Thailand has lodged concerns with China over the latter’s recent delivery of tanks to Cambodia, citing the fragility of a ceasefire between the South-east Asian neighbours following 2025’s deadly border clashes.

Thai Prime Minister Anutin Charnvirakul raised the concerns with Chinese President Xi Jinping in a meeting on July 17, Foreign Minister Sihasak Phuangketkeow told reporters on July 20 during the Thai delegation’s visit to China. 

“Our concern lies in Cambodia’s reporting of the tank delivery. At this time, relations are delicate, and the ceasefire is fragile,” Sihasak said.

“Presenting the tank delivery in a way that benefits Cambodia could not be beneficial for the current Thai-Cambodian situation.” 

The concerns came after Thai authorities in June said 39 Chinese T-59D battle tanks had been delivered to Cambodia as part of an existing joint military training agreement, adding that the hardware didn’t seem to have been moved to the border after. 

Relations between Thailand and Cambodia have remained tense after a second ceasefire agreement at the end of 2025, following days of clashes in July and December that ranked among the deadliest between the two countries. 

A compulsory UN settlement process for maritime disputes, initiated by Cambodia earlier in 2026, has further strained relations.

That has made talks on land border demarcation difficult and prompted a pause, Sihasak said. 

Tensions between the two countries can be traced back to co...