The Military Forces of Colombia (Spanish: Fuerzas Militares de Colombia) are the unified armed forces of the Republic of Colombia. They consist of the Colombian Army, the Colombian Navy and the Colombian Aerospace Force. The National Police of Colombia, although technically not part of the military, is controlled and administered by the Ministry of National Defence, and national conscription also includes service in the National Police, thus making it a de facto gendarmerie and a branch of the military. The President of Colombia is the military's commander in chief, and helps formulate defense policy through the Ministry of National Defence, which is in charge of day-to-day operations.

The Military Forces of Colombia have their roots in the Army of the Commoners (Ejército de los Comuneros), which was formed on 7 August 1819 – before the establishment of the present day Colombia – to meet the demands of the Revolutionary War against the Spanish Empire. After their triumph in the war, the Army of the Commoners disbanded, and the Congress of Angostura created the Gran Colombian Army to replace it, thus establishing the first military service branch of the country.

The Colombian military was operationally involved in World War II and was the only Latin American country to send troops to the Korean War. Ever since the advent of the Colombian Conflict, the Colombian military has been involved in combat, pacification, counter-insurgency, and drug interdiction operations all over the country's national territory. Recently it has participated in counter-piracy efforts in the Horn of Africa under Operation Ocean Shield and Operation Atlanta.

The military of Colombia is the third largest in the Western Hemisphere in terms of active personnel and has the fourth largest expenditure in the Americas, behind the United States Armed Forces, the Canadian Armed Forces and the Brazilian Armed Forces respectively.

National Army of Colombia (Ejército Nacional de Colombia)
https://en.wikipedia.org/wiki/National_Army_of_Colombia
https://en.wikipedia.org/wiki/List_of_equipment_of_the_National_Army_of_Colombia
The National Army of Colombia (Spanish: Ejército Nacional de Colombia) is the land warfare service branch of the Military Forces of Colombia. With over 361,420 active personnel as of 2020, it is the largest and oldest service branch in Colombia, and is the second largest army in the Americas after the United States and before Brazil.

It is headed by the Commandant of the National Army (Comandante del Ejército Nacional), falls under the authority of the Commandant General of the Military Forces (Comandante General de las Fuerzas Militares), and is supervised by the Ministry of National Defense, which answers to the President of Colombia.

The modern Colombian Army has its roots in the Army of the Commoners (Ejército de los Comuneros), which was formed on 7 August 1819 – before the establishment of the present day Colombia – to meet the demands of the Revolutionary War against the Spanish Empire. After their triumph against the Spanish, the Army of the Commoners disbanded, and the Congress of Angostura created the Gran Colombian Army to replace it. Throughout its history, the Colombian Army has seen action in several wars and civil conflicts, including the Gran Colombia-Peru War, the Ecuadorian–Colombian War, the Thousand Days War, and the Korean War. Since the mid-1960s, the Colombian Army has been involved in a low-intensity asymmetrical war known as the Colombian Armed Conflict.

Colombian Aerospace Force (Fuerza Aérea Colombiana)
https://en.wikipedia.org/wiki/Colombian_Aerospace_Force
https://en.wikipedia.org/wiki/Colombian_Aerospace_Force#Aircraft
The Colombian Air Force (FAC, Spanish: Fuerza Aérea Colombiana) is the aerospace force of the Republic of Colombia. The Colombian Air Force is one of the three institutions of the Military Forces of Colombia charged, according to the 1991 Constitution, with working to exercise and maintain control of Colombia's air and to defend its sovereignty, territorial integrity and constitutional order. It is one of the largest air forces in the Americas (after the United States and Brazil) and has increased its activity due to important roles in the fight against narco-terrorism. Its main force includes 21 IAI Kfirs as defense fighters and 12 Cessna A-37 Dragonfly plus 24 Embraer 314 Super Tucano for counterinsurgency.

The FAC has been used in observation and aerial combat missions since the Colombian-Peruvian war of 1932 and also operated during the Second World War in the islands of San Andrés.

The service's name was changed from the Colombian Air Force to the Colombian Aerospace Force in 2023.

Colombian Navy (Armada Nacional de la República de Colombia)
https://en.wikipedia.org/wiki/Colombian_Navy
https://en.wikipedia.org/wiki/Colombian_Navy#Equipment
The Colombian Navy, officially the Colombian National Navy (Spanish: Armada Nacional de la República de Colombia), also known as the "Armada Nacional" or just the "Armada" in Spanish, is the naval branch of the military forces of Colombia. The Navy is responsible for security and defence in the Colombian zones of both the Atlantic (Caribbean) and Pacific oceans, the extensive network of rivers inside the country, and a few small land areas under its direct jurisdiction.

The Colombian Navy has a strength of 35,086 personnel as of September 2013 including approximately 22,000 in the Marine Infantry corps.

The acronym "ARC", (Spanish: Armada de la República de Colombia) is used both as the official ship prefix for all the Colombian Navy ships, as well as a common short name for the Navy itself.