https://en.wikipedia.org/wiki/Royal_Cambodian_Armed_Forces

The Royal Cambodian Armed Forces (RCAF; Khmer: កងយោធពលខេមរភូមិន្ទ, ខ.ភ.ម, UNGEGN: Kâng Yoŭthôpôl Khémôrôphumĭnt, K.P.M, ALA-LC: Kang Yodhabal Khemarabhūmind, K.B.M) is Cambodia's national military force. The Supreme Commander-in-Chief is King Norodom Sihamoni. Since 2018, General Vong Pisen has been the Commander-in-Chief of the RCAF as head of the Army, Navy, Air Force and the Gendarmerie. The armed forces operate under the jurisdiction of the Ministry of National Defence. Under the country's constitution, the RCAF is charged with protecting the sovereignty and territorial integrity of the Kingdom of Cambodia.

It was created in 1993 by a merger of the Cambodian People's Armed Forces (CPAF) and the National Army of Democratic Kampuchea (NADK) which included the Khmer Rouge, the Khmer People's National Liberation Front (KPNLF) and the National United Front for an Independent, Neutral, Peaceful and Cooperative Cambodia (Front uni national pour un Cambodge indépendant, neutre, pacifique, et coopératif, FUNCINPEC). The forerunner of the CPAF was the Kampuchean People's Revolutionary Armed Forces (KPRAF), established in 1979 with support from the People's Army of Vietnam (PAVN).

Royal Cambodian Army (កងទ័ពជើងគោក)
https://en.wikipedia.org/wiki/Royal_Cambodian_Army
The Royal Cambodian Army (Khmer: កងទ័ពជើងគោក, Kâng Toăp Cheung Koŭk; lit. 'Land Army') is a part of the Royal Cambodian Armed Forces. It has ground forces which numbered 85,000 divided into eleven divisions of infantry, with integrated armour and artillery support. The Royal Army is under the jurisdiction of the Ministry of National Defence.

Under the current military plan and divisions, every military region has a full division size. Each division will be supplemented by a mobile reinforcement division in Phnom Penh. The country is divided into six, until recently five, military regions, each comprising three or four provinces. There are garrisons in major cities and major army bases.

General Hun Manet is the commander of the Royal Cambodian Army. He is also the Deputy Commander in Chief of the Royal Cambodian Armed Forces.

The forces are deployed as required across the country and in operations, with bases as follows:

1st Military Region (យោធភូមិភាគទី១): Headquarters are in Stung Treng and the region covers the provinces of Stung Treng, Kratié, Ratanakiri and Mondulkiri.
2nd Military Region (យោធភូមិភាគទី២): Headquarters are in Kampong Cham and the region covers the provinces of Kampong Cham, Prey Veng, and Svay Rieng.
3rd Military Region (យោធភូមិភាគទី៣): Headquarters are in Kampong Speu and the region covers the provinces of Kampong Speu, Takéo, Kampot, Sihanoukville, Koh Kong and Kep.
4th Military Region (យោធភូមិភាគទី៤): Headquarters are in Siem Reap and the region covers the provinces of Siem Reap, Oddar Meanchey, Preah Vihear, and Kampong Thom.
5th Military Region (យោធភូមិភាគទី៥): Headquarters are in Battambang and the region covers the provinces of Battambang, Pursat, Banteay Meanchey and Pailin.
Special Military Region (យោធភូមិភាគពិសេស): Headquarters are in the capital, Phnom Penh and the region covers the provinces of Kampong Chhnang, Kandal and the greater municipality of Phnom Penh.
Every Military Region is under the command of a Major General, assisted by a Chief of staff with a rank of a Brigadier General. In every province, there is a military base called Military Operation Zone under the command of a Colonel.

Royal Cambodian Air Force (កងទ័ពជើងអាកាស)
https://en.wikipedia.org/wiki/Royal_Cambodian_Air_Force
The Royal Cambodian Air Force (Khmer: កងទ័ពជើងអាកាស, 'Air Army') is the branch of the Royal Cambodian Armed Forces which is charged with operating all military aircraft in Cambodia.

The Royal Cambodian Air Force is commanded by General Soeung Samnang, who has four deputy commanders beneath him. The Air Force itself is under the jurisdiction of the Ministry of National Defence.

Air Force headquarters are located at Phnom Penh International Airport and is still sign posted Pochentong Air Base. The only operational aircraft at Pochentong Air Base are from the VIP squadron. Maintenance of aircraft and helicopters is also at Pochentong. The airworthy Z-9 and Mi-17 helicopters from the helicopter squadron are based at Phnom Penh International Airport and Siem Reap International Airport.

Recently, the Cambodian Ministry of National Defense plans to purchase five L-39NG light fighter jets from the Czech Republic. In the past, the Cambodian Air Force has already purchased Mil Mi-17 and Mil Mi-171 helicopters.

Royal Cambodian Navy (កងទ័ពជើងទឹក)
https://en.wikipedia.org/wiki/Royal_Cambodian_Navy
The Royal Cambodian Navy (Khmer: កងទ័ពជើងទឹក, romanized: Kâng Toăp Cheung Tœ̆k; lit. 'Naval Army') is the naval warfare service branch of the Royal Cambodian Armed Forces and one of the three uniformed services of the Kingdom of Cambodia. It has an estimated of 4,000 active personnel and operates 228 boats/ships in active service. It is commanded by Admiral Tea Vinh and sails under the jurisdiction of the Ministry of National Defense.

The navy possesses fifteen patrol craft and a further five patrol craft of the "fast attack" variety. There are also about 200 motorised and manual canoes.

The country's seagoing capability was boosted in August 2005 when China handed over 5 patrol boats. In 2007 a further 10 were handed over worth $100,000,000. The craft were donated to Cambodia by China to help counter piracy, transnational crime, smuggling and to safeguard future oil installations.

In 2007, Cambodia reported that it was increasing the strength of its navy from 1,000 to 3,000 sailors, apart from creating a force of 2,000 Marine infantry.


USS Mustin (DDG-89) visits Cambodian Navy.
Many officers of the Royal Cambodian Navy received their training at the Vietnam Naval Academy.

Royal Cambodian Navy also have many plans to strengthen their naval fleet with assistance from China, Germany, Vietnam, Indonesia, South Korea, and Japan.