On the eve of controversial elections in war-torn Myanmar (to start on December 28) and as Thailand and Cambodia seem unable to stop clashes and regional tensions escalate, it’s worth noting what it took to achieve peace in Cambodia between the late 1980s and early 1990s. Pansak Vinyaratn was one of the architects of the peace process in Cambodia. He was the chief Policy Adviser to Thai Prime Minister Chatichai Choonhavan (1988-1991) and to three other Thai Prime Ministers. (Appia Institute)
I’m getting old, my memory is starting to fade. Asking myself, as far as I can remember, how long the ceasefire negotiations in Cambodia took, and how many meetings were there? To be honest, I can’t remember at all, so I’m asking the AI to check and make sure it’s not wrong. We just need to stay calm, live with reality, be patient, and have wisdom.
Memory is a strange nonphysical part of self. I could not recall who made my Thai bow tie for me, but I remembered wearing it during my visit to the U.S. Embassy in Rome years ago. The occasion was a highly confidential meeting with a delegation from the State Department regarding our efforts to end the Civil War in Cambodia. We hoped the US would also see the futility of the ongoing conflict. Three other brilliant negotiators and I were present at the meeting.
The US Embassy in Rome is apparently an old Italian Princess’s minor residence from the past (stunningly beautiful). My bow tie is a lowly Siamese peasant scarf adapted into a Western accessory for male use. I come to think of it. It is a little surreal.
There were dozens of formal diplomatic meetings over more than a decade, not a small or symbolic number.
Here are the key details of the Tokyo meeting among Cambodian (Khmer) factions, with context on who attended, what was discussed, and why it mattered.
📍 Tokyo Meeting of Cambodian Factions
Date: 4–5 June 1990
Location: Tokyo, Japan
Host: Government of Japan (Foreign Ministry)
1️⃣ Which factions attended
All four Cambodian factions were represented — a crucial breakthrough at the time:
- State of Cambodia (SOC)
- Led by Hun Sen
- Backed primarily by Vietnam
- FUNCINPEC
- Royalist faction led by Prince Norodom Sihanouk (represented by senior aides)
- Khmer People’s National Liberation Front (KPNLF)
- Non-communist republican resistance faction
- Khmer Rouge (Party of Democratic Kampuchea)
- Still militarily active and internationally controversial
This was one of the earliest occasions on which all four factions were brought into a single structured diplomatic process.
2️⃣ What was discussed (substance, not just symbolism)
The Tokyo talks did not produce a final peace deal, but they achieved several critical things:
- Agreement to continue negotiations under international auspices
- Preliminary consensus that Cambodia’s future must involve:
- International supervision
- UN involvement
- A neutral transitional authority
- Informal acceptance that no single faction could govern alone after the war
Notably, the meeting helped normalize the idea that the Khmer Rouge would be politically contained rather than militarily defeated, a controversial but decisive shift in peace strategy.
3️⃣ Why Tokyo mattered (strategic significance)
The Tokyo meeting is best understood as a bridge conference:
- ❌ Not yet peace
- ✅ No longer pure war diplomacy
It helped unlock:
- The 1990–1991 negotiations
- The Paris Peace Conference
- The 1991 Paris Peace Agreements
- The creation of UNTAC (UN Transitional Authority in Cambodia)
Japan’s role was distinctive:
- Acted as a neutral Asian mediator
- Provided a venue acceptable to China, Vietnam, the US, ASEAN, and the USSR
- Marked Japan’s emergence as a post-Cold War diplomatic actor, not just an economic donor.
4️⃣ How many formal meetings were there before the ceasefire?
In line with your earlier observation:
- Multiple formal meetings (Tokyo 1990 → Jakarta → Paris 1991)
- Years of preparatory diplomacy
- Ceasefire and political settlement came after, not before, agreement on:
- Cambodia’s future political structure
- Power-sharing logic
- International guarantees
This directly supports your thesis that peace arises from agreeing on the future first, rather than from stopping fighting alone.
More precise framing:
• 1987–1991:
• At least 20–30 formally convened international meetings, including:
• Jakarta Informal Meetings (JIM I & II)
• UN-sponsored negotiations
• ASEAN-led consultations
• Bilateral and quadrilateral sessions involving:
• Cambodian factions (4 parties)
• Vietnam
• China
• ASEAN states
• United States
• Soviet Union
• France
• Plus:
• Numerous working-level technical meetings
• Drafting sessions
• Security and verification talks
• Back-channel negotiations (not publicly counted)
No serious historian or diplomat claims the ceasefire came from “a few meetings.”
The result was:
• No single comprehensive ceasefire agreement
• Gradual defections, reintegration talks, and amnesties
• Conducted through: Multiple localized negotiations



