| Conflict: | War of Independence of Maynas |
| Partof: | Spanish American Wars of Independence |
| Date: | 10 April 1821 23 September 1822 |
| Place: | General Command of Maynas |
| Territory: | The General Command of Maynas is incorporated into Peru |
| Result: | Patriot victory |
| Combatant1: | Maynas rebels Peru |
| Combatant2: | |
| Commander1: | Pedro Pascasio Noriega Matiaza Rimachi |
| Commander2: |  Manuel Fernández Álvarez Santiago Cárdenas José María Matos |
| Units1: | Invisible Army[1] Army of the Andes |
| Units2: | Royal Army of Peru |
The War of Independence of Maynas (Spanish; Castilian: Guerra de Independencia de Maynas), also known as the Maynas War (Spanish; Castilian: Guerra de Maynas), was an episode of the Spanish American Wars of Independence where the General Command of Maynas declared its independence from the Spanish Empire. It started with the royalist army's takeover of the city of Moyobamba in response to the city's imminent declaration of independence and ended with the capture of the city in 1822.
The conflict took place within the Spanish American Wars of Independence. The General Command of Maynas, a territory created under the Spanish Empire, had been preceded by the declarations of independence of the Republic of Colombia (in 1819) and the Protectorate of Peru (in 1821) in its immediate surroundings.
April 10, 1821, had been chosen as the date for Maynas' declaration of independence, although said plans were interrupted when troops of the Royal Army of Peru took over the city of Moyobamba, the capital of the General Command, capturing a number of so-called patriots, such as Pedro Pascasio Noriega, who was executed on the 11th.[2]
In response to the events, José Bernardo de Tagle y Portocarrero, 4th Marquess of Torre Tagle, then intendant of Trujillo, sent troops under the command of Juan Valdivieso (who had previously defeated the royalists at Higos Urco). Once in the city, an armistice was requested to settle on the area's future, with August 10 chosen as the date of independence, although an open cabildo ultimately carried out said proclamation on August 19.[2] On August 17, Governor Manuel Fernández Álvarez asked the opinion of a war council, which decided that the forces would take refuge in Tabatinga, delivering artillery and ammunition to Luso-Brazilian commanders.[3]
The Royal Army carried out a counter-insurgent military campaign that recaptured Moyobamba on May 24, 1822. In response, the 200-men 11th battalion of the Army of the Andes was sent under the command of . Battles took place in La Ventana, Tambo Visitador, Sarandajas, and the Pampa de Higos Urco.[2] The latter two served as a decisive point in the campaign,[4] with the patriot armies successful in their consolidation of Maynas' independence soon after.[2] The battle at Higos Urco also gave San Martín the confidence to take over Lima, proclaiming the independence of Peru on July 28, 1821.[5]