Sihanoukville is also known as Kampong Saom, is a province of Cambodia on the Gulf of Thailand. This is a port city and an increasing Cambodian urban center, situated 185 kilometers (115 mi) southwest of the Cambodian capital, Phnom Penh. The province is known after King Father Norodom Sihanouk and grew up in the construction of Sihanoukville Port. Construction on the port started in June 1955 and it was the just deep water port in Cambodia. The port was constructed in part because of the waning power of the French leading to the Vietnamese reducing their control over the Mekong Delta and hence limiting river access to Cambodia. The beaches of Sihanoukville have made it a famous place for tourist.
Sihanoukville attracts tourists with its comfortable beach environment when compared to Thailand's more highly-developed ones. Conversely, the city has paying attention not just tourists, but various NGOs and national and foreign investors in the last years so as to originate not just the increasing the industry of tourist, but its capability as an international sea port and other parts like real estate and textile. In Sihanoukville is also situated the main factory of Angkor Beer, the Cambodian national beer.
Sihanoukville was the place of the final official conflict of the American army in the Vietnam War, even though the event took place outside Vietnam. It is recognized as the Mayaguez incident on May 12–15, 1975 between the Khmer Rouge and the US forces. Presently, tourists dive in Koh Tang, one of the Sihanoukville islands where all these important battle to free the SS Mayagüez took place. Divers can check those two shipwrecks 40 metres (130 ft) down. On 22 December 2008, King Norodom Sihamoni signed an agreement of a Royal Decree that varied the municipalities of Pailin, Kep and Sihanoukville into provinces, also as adjusting various provincial borders.