General
Thai Military Secures Border Area Following Unauthorized Activity at Hill 450
The Second Army Area has secured the border near Chong Sa-Ngam after reports of unauthorized trench digging by Cambodian forces.
According to a report by Matichon Online on September 16, 2026, the Second Army Area of Thailand has taken control of the border region near Hill 450 at the Chong Sa-Ngam pass. This action follows reports of Cambodian personnel allegedly digging communication trenches and installing barbed wire in the area.
Thai military officials have stated that these activities violate existing bilateral agreements, which strictly prohibit the movement of troops or the alteration of the landscape in disputed or sensitive border zones. The Thai military has since secured the area to prevent further unauthorized construction and is currently demanding that Cambodian counterparts adhere to established protocols regarding border conduct.
For residents and travelers in the Sisaket province area, this development highlights the ongoing sensitivity of the border region. While the situation is currently under control, those planning travel near the Chong Sa-Ngam border crossing should remain aware that military activity may lead to temporary restrictions or increased security presence. It remains to be confirmed whether diplomatic discussions will resolve the dispute or if further unauthorized construction attempts will occur. Travelers are advised to monitor local news for updates on border accessibility and to follow instructions from local authorities should any security measures be implemented.