Thailand and Cambodia have formally agreed to an instantaneous ceasefire, effective from 12:00 local time on Saturday, December 27, 2025, to halt essentially the most intense series of armed clashes along their shared border in several years.
“Both sides comply with an instantaneous ceasefire upon signature of this joint declaration, with effect from 12:00 (local time) on 27 December 2025, covering all weapons, including attacks on civilians, civilian facilities and infrastructure and military objectives of either party, in all cases and in all areas,” the joint statement said.
The agreement was signed by Thailand’s Defense Minister Natthaphon Narkphanit and Cambodia’s Defense Minister Tea Seih at a border checkpoint after three days of intense negotiations between senior military officials from either side.
The agreement ends 20 days of fighting that killed lots of of individuals and led to mass cross-border displacements. This marks the second attempt at de-escalation in six months, after the previous agreement was broken in early December 2025.
Contract Terms and Monitoring Mechanisms
Under the agreement of December 27, 2025, each countries agreed to freeze all troop movements, stop the usage of all sorts of weapons and refrain from violating one another’s airspace for military purposes.
ASEAN will send a monitoring team to oversee the implementation of the ceasefire, supported by direct communication mechanisms at the extent of defense ministers and military commanders.
“Both sides agree to maintain the current troop deployment without further movements,” one other a part of the joint statement said.
Thailand also announced it might repatriate 18 Cambodian soldiers detained because the July 2025 clashes, provided an entire ceasefire is maintained for 72 hours.
The agreement also covers the return of displaced civilians, cooperation on the removal of landmines, and joint efforts to combat cross-border crime, including cyber fraud.
Both sides also agreed to refrain from spreading disinformation and avoid provocative actions. Nevertheless, the Thai military stressed that they’re able to respond if the ceasefire conditions are violated.
Clashes starting in July and fighting resumed in December
The latest conflict dates back to 5 days of clashes in July 2025, which killed at the least 48 people and compelled roughly 300,000 residents from their homes. The ceasefire then reached was brokered by Malaysia and supported by pressure from US President Donald Trump, before a peace agreement was formally reached in October 2025.
However, the agreement collapsed in early December 2025 with either side accusing one another of violations, triggering a brand new round of military escalation. Fighting resumed on December 7, spreading from forested areas near Laos to coastal regions along the Gulf of Thailand.
During the escalation, Thailand sent fighter jets to strike targets on Cambodian territory, while Cambodia retaliated with cross-border missile fire.
Thailand reported the death of 26 soldiers and one civilian, in addition to dozens of civilians killed not directly because of this of the conflict. Meanwhile, Cambodia said 30 civilians were killed and 90 wounded, even though it didn’t publish official military casualty figures.
Previous diplomatic efforts have did not stop the fighting. Neither Malaysian Prime Minister Anwar Ibrahim, who serves as ASEAN chairman, nor President Trump managed to revive a ceasefire before the conflict spread.
The breakthrough got here only after a special meeting of Southeast Asian foreign ministers in Kuala Lumpur, followed by three days of face-to-face negotiations along the border.
The century-old dispute still resurfaces
The ceasefire agreement doesn’t resolve the elemental territorial dispute between the 2 countries. Thailand and Cambodia have been in conflict for greater than a century at multiple points along their roughly 800-kilometer land border, with disputes rooted in colonial-era maps and treaties.
The disputed areas range from distant regions to historically significant sites and have repeatedly sparked armed clashes. Historic rivalry and rising nationalist sentiments in each countries proceed to extend the danger of escalation should tensions break out.
“War and clashes do not make two countries or two people happy,” said Royal Thai Air Force Chief of Staff Air Chief Marshal Prapas Sornjaidee.
While the December 27, 2025 ceasefire opens space for short-term stability, the border conflict between Thailand and Cambodia continues to hold the danger of renewed tensions so long as the underlying disputes remain unresolved.
