The Bolivian Armed Forces (Spanish: Fuerzas Armadas de Bolivia) are the military of Bolivia. The Armed Forces of Bolivia are responsible for the defence, both of external and internal, of Bolivia and they are constituted by Bolivian Army, the Bolivian Air Force and the Bolivian Navy. All these institutions depend on the Ministry of Defence of this country.

In addition to the Bolivian Army, the Bolivian Air Force and the Bolivian Navy, the Bolivian National Police, although dependent on the Ministry of Government in times of peace, is part of the reserves of the Armed Forces according to the Organic Law of the Armed Forces of this nation, together with other reserve bodies such as the SAR-FAB emergency and rescue units.

Figures on the size and composition of the armed forces of Bolivia vary considerably, with rare official data available. It is estimated, however, that the three main forces (army, navy and air force) add up to a total of between 40,000 to 70,000 troops, while the Bolivian police would be around 40,000 troops.

Bolivian Army (Ejército Boliviano)
https://en.wikipedia.org/wiki/Bolivian_Army
The Bolivian Army (Spanish: Ejército Boliviano) is the land force branch of the Armed Forces of Bolivia. Figures on the size and composition of the Bolivian army vary considerably, with little official data available. It is estimated that the army has between 26,000 and 60,000 men.

Bolivian Air Force (Fuerza Aérea Boliviana)
https://en.wikipedia.org/wiki/Bolivian_Air_Force
The Bolivian Air Force (Spanish: Fuerza Aérea Boliviana or 'FAB') is the air force of Bolivia and branch of the Bolivian Armed Forces.

Bolivian Navy (Armada Boliviana)
https://en.wikipedia.org/wiki/Bolivian_Navy
The Bolivian Navy (Spanish: Armada Boliviana) is a branch of the Armed Forces of Bolivia. As of 2008, the Bolivian Navy had approximately 5,000 personnel. Although Bolivia has been landlocked since the War of the Pacific and the Treaty of Peace and Friendship (1904), Bolivia established a River and Lake Force (Fuerza Fluvial y Lacustre) in January 1963 under the Ministry of National Defense. It consisted of four boats supplied from the United States and 1,800 personnel recruited largely from the Bolivian Army. The Bolivian Navy was renamed the Bolivian Naval Force (Fuerza Naval Boliviana) in January 1966, but it has since been called the Bolivian Navy (Armada Boliviana) as well. It became a separate branch of the armed forces in 1963. Bolivia has large rivers which are tributaries to the Amazon which are patrolled to prevent smuggling and drug trafficking. Bolivia also maintains a naval presence on Lake Titicaca, the highest navigable lake in the world, which the country shares with Peru.

Landlocked Bolivia has not reconciled with the loss of its coast to Chile, and the Navy exists to keep the hope alive of recovering its coast by cultivating a maritime consciousness. The Bolivian Navy takes part in many parades and government functions, but none more so than the Día del Mar (Day of the Sea) in which Bolivia, every year, re-vindicates its claim for an unspecified sovereign access to the sea.

Bolivia claims the country had access to the sea at independence in 1825. In the Boundary Treaty of 1866 between Chile and Bolivia the involved parties agreed on a border line that established a sea access for Bolivia recognized by Chile. In the War of the Pacific (1879–1883) Chile defeated Peru and Bolivia, and conquered the Litoral Department which included all of the Bolivian coastline. The recovery of its coast is a matter of honor in Bolivia, influencing many modern-day political actions and trade decisions.

In 2010, Peru granted Bolivia "dock facilities, a free-trade zone and space for economic activities" along with the option to "build a Pacific Coast annex for the Bolivian navy school" in a 99-year deal.