Hun Manet Offers Safety Guarantees as Um Sam An Seeks Conditions for Cambodia Border Talks

Dispute over markers 52 to 59 becomes a test of public dialogue

Cambodian Prime Minister Hun Manet has invited exiled former opposition lawmaker Um Sam An to return to Cambodia and present evidence concerning temporary border markers between boundary pillars 52 and 59 along the frontier with Thailand. The offer includes protection throughout his stay, possible monitoring by a foreign embassy or civil society organization, and assistance with airfare, transport and accommodation.

Sam An has alleged that temporary markers placed by the technical team of the Cambodia-Thailand Joint Boundary Commission (JBC) encroached on Cambodian territory. He has also accused the government of surrendering land to Thailand in exchange for peace and political power. Hun Manet rejects those accusations and wants a discussion with specialists from the State Secretariat of Border Affairs, with an inspection of the disputed terrain if needed.

In its October 11 statement, dated 2026, the government news agency Agence Kampuchea Presse (AKP) said Hun Manet had listened to Sam An's approximately 80-minute response but believed he had not clearly accepted or rejected the invitation. The statement identifies transparency, accountability, accuracy and responsibility as the purposes of the proposed exchange.

The disagreement now concerns both the border evidence and the conditions under which it could be examined. Sam An fears arrest or physical attack if he returns. Hun Manet insists Cambodia is the appropriate venue because citizens could witness the discussion and participants could visit the border area, identified in the invitation as Kamrieng district in Battambang province.

What the invitation would provide

The invitation issued on October 10 asks Sam An and his team to bring documents and evidence concerning the stretch between pillars 52 and 59. They would discuss their claims directly with the government's technical border specialists rather than rely on competing statements on social media.

Hun Manet offered to cover return airfare if Sam An lacked funds, alongside free local transportation and lodging. He also promised protection from arrival until departure, presenting travel costs and personal safety as concerns the government was prepared to address.

The proposed audience would include journalists, political party representatives, civil society organizations, students, intellectuals and members of the public, including Sam An's supporters. This would make the exchange more public than a private meeting between opposition figures and officials, although the extent of access has not been settled.

Hun Manet, explaining the invitation and defending the government's willingness to answer questions, said:

The government has nothing to hide, and the border experts' team stands ready for a frank discussion with Sam An and his team.

Why Hun Manet insists on Cambodia

The prime minister gives two reasons for rejecting a venue abroad: access for Cambodian citizens and the possibility of checking the disputed terrain. AKP's statement says he wants the exchange to go beyond documents presented at a table if those documents do not settle the disagreement.

Hun Manet said an inspection could follow an inconclusive discussion:

If discussions at the table do not produce a clear and conclusive outcome, then only verification on the ground can provide clarity.

That proposal would connect the debate to the actual locations of the markers. It would not, by itself, settle their legal status. An inspection would still require agreed technical procedures, security arrangements and authorizations, particularly while border issues with Thailand remain unresolved.

Hun Manet also framed acceptance of a Cambodian venue as a demonstration of Sam An's trust in and regard for citizens living in the country. Sam An's response places a different priority on location: whether he and his team could participate without risking detention or violence.

Sam An seeks protection and wider political changes

During his lengthy Facebook response on October 10, Sam An said he feared imprisonment, a shooting attack or assault if he returned. He proposed holding the discussion in the United States, where he said the safety of both sides could be assured.

He said he would first consult his team and the Independent Cambodia Government of October 23, a movement led by opposition politician Sam Rainsy, who is based abroad. Sam An described his proposed conditions as personal views rather than an agreed position representing everyone on his team.

Those conditions extend beyond the proposed border discussion. He sought royal pardons for himself and certain others, guarantees against physical attacks, the release of political prisoners, restoration of the Cambodia National Rescue Party (CNRP), free and fair elections, respect for human rights, and permission for opposition leaders to return.

The leaders named in his call included Sam Rainsy, Eng Chhay Eang and Mu Sochua. These demands link the prospect of a technical border exchange to a much broader political reconciliation that Hun Manet's invitation does not resolve.

Sam An, a former CNRP member of the National Assembly, said his purpose was to defend Cambodia's position against Thailand rather than compete with fellow Cambodians:

I do not want to win against the Cambodian people, but against the Thai side.

Reports differ on whether his response amounted to a refusal. Some describe him as having declined because of safety concerns, while Hun Manet's account, repeated in the October 11 government statement, says he had not provided a definite answer. There is no confirmed agreement on a venue or meeting date.

A safety promise does not settle the legal concerns

Hun Manet renewed his protection pledge after listening to Sam An's response. The prime minister said:

I reiterate my guarantee of the safety of Um Sam An and his team throughout their presence in Cambodia until they have left the country.

He said Sam An could ask a foreign embassy in Cambodia or a trusted civil society organization to monitor his safety. Hun Manet argued that any incident involving the former lawmaker would damage public confidence in his leadership and expose him to accusations.

Cambodian geopolitical analyst Seng Vanly said the political cost Hun Manet might bear if something happened was not itself a guarantee of legal or personal security. He proposed having lawyers and independent observers present from arrival through departure.

Sam An's previous imprisonment helps explain why he distinguishes a public promise from legal protection. He was arrested in April 2016 over comments concerning Cambodia's border with Vietnam. On October 10, 2016, he received a sentence of two years and six months for a Facebook post accusing the government of ceding land through improperly demarcated maps. He received a royal amnesty on August 25, 2018.

That earlier case concerned Vietnam, not the current dispute with Thailand. It nevertheless forms part of Sam An's stated fear about returning. No new royal pardon, agreed legal protection arrangement or embassy monitoring commitment has been announced in connection with this invitation.

Temporary markers are not the same as a settled boundary

The central allegation concerns temporary technical markers placed between established boundary pillars 52 and 59. Such markers must be distinguished from the formal demarcation of an international boundary, the process of identifying and marking the agreed boundary on the ground.

A temporary marker's position does not, on its own, establish that sovereignty has changed or that land has been legally transferred. Assessing Sam An's claim requires the relevant legal documents, boundary maps and technical data, together with an explanation of what the markers were intended to represent.

Hun Manet describes the allegations as an attack on both the government and Cambodian specialists who have spent decades working to protect the country's territory. That defense is the government's position, not a substitute for comparing the disputed locations with the applicable boundary records.

No quantified area of alleged land loss has been established in the public exchange. Nor has an agreed technical finding been announced that confirms or disproves Sam An's accusation. The proposed discussion could help distinguish disagreements about physical marker placement from disagreements about the legal boundary, but only if the evidence and procedures are made sufficiently clear.

Public access would have limits

The promise of observers comes with a qualification. Hun Manet says some sensitive information cannot be disclosed broadly on social media while negotiations and efforts to resolve border issues with Thailand remain unfinished. Reports of the invitation describe public participation as being allowed to a certain extent.

This leaves an unresolved practical issue: what observers would actually be permitted to see. A discussion witnessed by journalists and civil society could provide more public scrutiny than an exchange of Facebook statements, but its value would depend on access to the evidence and explanations supporting each position.

Vanly said the government should publish documents and maps and explain its border work whether or not Sam An joins a debate. He also proposed a public online discussion first, followed by a field inspection later, allowing both sides to ask questions, answer them and present evidence on an equal basis.

Chao Ratanak, a deputy chief of Poipet commune, welcomed the invitation as a positive sign of renewed dialogue. She said the first meeting did not necessarily have to take place in Cambodia and expressed hope for political unity and national reconciliation.

Vanly also urged the government to apply the same openness to allegations linking officials and Cambodian People's Party figures to the online scam industry. That was a separate request for scrutiny, not evidence concerning the border markers or an agreed addition to the proposed meeting.

The invitation follows calls for observers at border surveys

The dispute with Sam An sits alongside Cambodia's efforts to resume bilateral border survey work. Speaking in Battambang on October 8, Hun Manet said Cambodia would invite ASEAN Observer Team (AOT) members from both sides to witness future field surveys.

The prime minister described the proposed observer role:

When we conduct the next survey, we will ask the AOT from both sides to participate as witnesses and monitor the process, because they have a monitoring mandate.

Hun Manet said observers had already inspected posts 52 and 59 and areas where Cambodian authorities say Thai forces extended control beyond the boundary. He also said Cambodia had escorted UN special rapporteur Thomas H. Andrews on a border visit. These accounts describe Cambodia's efforts to bring outside witnesses to the area, but do not establish an independent finding about the disputed temporary markers.

Hun Manet cited the 1904 Convention, the 1907 Treaty and relevant official maps as the basis for seeking the return of territory Cambodia says is under Thai occupation. He argued that military control did not make those areas Thai territory and said Cambodia had signed no agreement transferring them.

These are Cambodian claims about the frontier. They are distinct from Sam An's accusation that Cambodian officials accepted territorial losses through temporary marker placement. The two disputes concern the same sensitive border area but require separate examination of evidence.

How the exchanges developed

The sequence links interrupted survey work with the latest argument over public scrutiny. Reports describe the following developments:

• October 22 and 23, 2025: Cambodia and Thailand held their last reported JBC meeting in Chanthaburi, Thailand, followed by field surveys.
• December 7, 2025: Survey work was suspended after fighting resumed.
• October 8, 2026: Hun Manet said Cambodia would seek ASEAN observers for future surveys.
• October 10, 2026: Hun Manet invited Sam An to bring his border evidence to Cambodia. Sam An responded in an approximately 80-minute Facebook broadcast.
• October 11, 2026: Hun Manet renewed his safety guarantee and defended holding the discussion in Cambodia, according to AKP.

No date has been announced for the proposed discussion, a preliminary online exchange or a joint inspection involving Sam An. Cambodia has said it is ready to resume JBC survey work and has asked Thailand to dispatch its technical team, but no confirmed resumption date is given.

The immediate decisions are therefore whether Sam An and his team will accept a meeting, whether the parties can agree on credible legal and physical protection, and which documents can be examined publicly. Until those arrangements are settled, the invitation remains a proposal rather than an agreed process for resolving the allegations.

Key Points

• Hun Manet has invited Um Sam An to discuss alleged territorial losses between Cambodia-Thailand boundary pillars 52 and 59.
• The offer includes safety assurances, possible outside monitoring, travel assistance, accommodation and local transport.
• Sam An prefers a meeting in the United States and has sought pardons, protection and wider political changes before returning.
• Temporary technical markers are distinct from formal boundary demarcation. Territorial loss claims require legal records, maps and technical evidence.
• Public attendance is proposed, but Hun Manet says ongoing negotiations limit disclosure of sensitive information.
• No meeting date, inspection schedule or agreed legal protection arrangement has been announced.