Cambodia in the ancent time was very big and contained a lot of provinces. But now? In the map we can see that Cambodia is very little country if we compare with Thailand, Laos and Vietnam. We have lost more than 120 000 Km2 in to Thailand and Vietnam.
This is the name list of the provinces that we have lost to Thailand (60 000 Km2)

1. Nokor Reach จังหวัดนครราชสีมา
2. Borey Rom จังหวัดบุรีรัมย์
3. So Rin จังหวัดสุรินทร์
4. Ton Borey จังหวัดธนบุรี
5. Serey Saket ศรีสะเกษ
6. Stung Crao จังหวัดสระแก้ว
7. Chann Borey จังหวัดจันทบุรี
8. Kok Khan ?
9. Bachem Boreyจังหวัดปราจีนบุรี
10. Trach จังหวัดตราด
11. Sang Ket ?
12. Ou Bun จังหวัดอุบลราชธานี

This is the name list of the provinces that we have lost to Vietnam (65 000 Km2)

1. Phreah Tro Peang
2. Srok Klang
3. Mat Chrouck
4. Kroe Moun Sor
5. Pul Leav
6. Tek Kmao
7. Peam
8. Prek Re Sey
9. Roang Damrey
10. Prey Norkor
11. Toul Tamok
12. Chang Va tro pang
13. Srocatrey
14. Mes
15. Koh Korng
16. Preah Sour Kear
17. Psa Am Bes
18. O Kab

And we also have lost two islands in to Vietnam su as

1. Trol Island
2. Trolach Island

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