Oddar Meanchey province is located north of Cambodia and borders Thailand. One of its five districts, Chong Kal, will host a Public Village Forum (PVF) on February 6, 2014. The district was named during the Sangkum Reastr Niyum era (or Socialist Populist Regime). This province was once covered by dense forests and mountainous ranges, where the Khmer Rouge used as bases to attack the Khmer Republic of Lon Nol between 1970 and 1975. After gaining victory on April 17, 1975, this area was faced with tragic but memorable history.

The Cambodia's civil war protracted between 1979 and 1998. The geographic and strategic advantage of Oddar Meanchey province was used to carry out guerrilla warfare against the People's Republic of Kampuchea (PRK) supported by Vietnamese forces. In response, K-5 plan (or Phen Ka K-5) was hatched. It was regarded as an aggressive initiative to destroy resistance bases, close the border with Thailand, eliminate the resistance forces, strengthen the PRK regime, and force the Vietnamese forces to withdraw from Cambodia by 1990. The people from all walks of life, including PRK's cadres themselves, were mostly conscripted. Among them, the ethnic Chinese (Khmer half-blooded Chinese) were specifically discriminated and targeted for the dangerous work. In 1983, the ethnic Chinese were classified and coded as "351." They were forcefully recruited to work on the K-5 Plan and continued to suffer the most during the PRK rule, although 225,000 out of 400,000 Chinese, according to Ben Kiernan, had died under the KR rule (1975-1979). Despite the numerous deaths of the ethnic Chinese, no genocide charge was built up against the surviving KR leaders.