| Conflict | Combatant 1 | Combatant 2 | Results | Head of State |
|---|
Invasion of the Mosquito Coast
(1848) | Nicaragua | Mosquito Coast
{{flag|United Kingdom|size=22px}} | Defeat- Nicaragua loses San Juan del Norte
| José María Guerrero |
Nicaraguan Civil War
(1854–1857) | Legitimists
{{flag|Costa Rica|1848|size=22px}}
Honduras
{{flagicon image|Flag of the Mosquito Coast 1834-1860.svg|size=22px}} The Mosquito Coast
Guatemala
El Salvador | Liberals
{{flagicon image|Flag of Nicaragua (Government of William Walker).png|size=22px}} Filibusters | Legitimist victory- Defeat of William Walker's army
| Fruto Chamorro
William Walker |
Nicaragua Crisis of 1895
(1894–1895) | Nicaragua | Mosquito Coast
{{flag|United Kingdom|size=22px}} | Victory- Establishment of the Zelaya Department
| José Santos Zelaya |
Honduran Civil War
(1906–1907) | Nicaragua
Liberal rebels | Government of Honduras
El Salvador | Victory- Dávila becomes President of Honduras
|
Estrada's Rebellion
(1909–1910) | {{flagicon|Nicaragua|size=22px}} Liberal government | {{flagicon|Nicaragua|size=22px}} Conservative rebels
{{flag|United States|1908|size=22px}} | Regime change- Estrada recognized as President of Nicaragua
|
Mena's Rebellion
(1912) | {{flagicon|Nicaragua|size=22px}} Conservative government
{{flag|United States|1912|size=22px}} | {{flagicon|Nicaragua|size=22px}} Liberal rebels | Government victory- Liberal rebels exiled to Panama
| Adolfo Díaz |
Constitutionalist War
(1926–1927) | {{flagicon|Nicaragua|size=22px}} Conservative government
{{flag|United States|1912|size=22px}} | {{flagicon|Nicaragua|size=22px}} Liberal rebels | Government victory- Pact of Espino Negro, election of 1928 held
| Emiliano Chamorro Vargas |
Sandinistas War
(1927–1933) | {{flagicon|Nicaragua|size=22px}} Conservative government
{{flag|United States|1912|size=22px}} | {{flagicon|Nicaragua|size=22px}} Sandinistas | Government victory- Sandinistas surrender their weapons
| Adolfo Díaz |
Costa Rican Civil War
(1948) | Government of Costa Rica
Calderon forces
People's Vanguard Party
Nicaragua | PLN
Forces of Otilio Ulate | Defeat- Teodoro Picado Michalski toppled, José Figueres Ferrer becomes President of Costa Rica
| Víctor Manuel Román |
Invasion of Costa Rica
(1955) | {{flag|Nicaragua|size=22px}}
Calderon forces | Costa Rica | Defeat- Nicaraguan withdrawal from Costa Rica
| Anastasio Somoza García |
Operation Power Pack
(1965–1966) | {{flag|United States|1960|size=22px}}
{{flag|Brazil|1960|size=22px}}
{{flag|Honduras|size=22px}}
{{flag|Paraguay|1954|size=22px}}
{{flag|Nicaragua|size=22px}} | {{flag|Dominican Republic|size=22px}} | Victory- Juan Bosch excluded from Presidency, election of Joaquín Balaguer
| René Schick |
Nicaraguan Revolution
(1972–1990) | {{flagicon|Nicaragua|size=22px}} Somoza Dynasty
{{flagicon|Nicaragua|size=22px}} Contras | {{flagicon image|Flag of the FSLN.png|size=22px}} FSLN | Regime change- Overthrow of Somoza government
| Anastasio Somoza Debayle |
Miskito Conflict
(1982–1987) | {{flag|Nicaragua}} | Miskito guerrillas | Victory | |
Iraq War
(2003–2004) | {{flag|Iraq|size=22px}}
{{flagicon image|Flag of Kurdistan.svg|size=22px}} Iraqi Kurdistan
{{flagicon image|Flag of Multi-National Force – Iraq.png|size=22px}} MNF–I- {{flagicon image|Flag of the United States (Pantone).svg|size=22px}} United States
- {{flag|United Kingdom|size=22px}}
- {{flag|South Korea|size=22px}}
- {{flag|Italy|size=22px}}
- {{flag|Poland|size=22px}}
- {{flag|Australia|size=22px}}
- {{flag|Georgia|size=22px}}
- {{flag|Ukraine|size=22px}}
- {{flag|Netherlands|size=22px}}
- {{flag|Spain|size=22px}}
- {{flag|Romania|size=22px}}
- {{flag|Bulgaria|size=22px}}
- {{flag|Denmark|size=22px}}
- {{flag|Thailand|1917|size=22px}}
- {{flag|Honduras|size=22px}}
- {{flag|El Salvador|size=22px}}
- {{flag|Nicaragua|size=22px}}
| {{Flagicon|Iraq|1991|size=22px}} SCJL
{{Flagicon|Iraq|1991|size=22px}} Naqshbandi Army
{{flagicon image|Flag of the Islamic State in Iraq and the Levant.svg|size=22px}} ISIL
{{flagicon image|Flag of al-Qaeda in Iraq.svg|size=22px}} al-Qaeda
{{Flagicon|Iraq|1991|size=22px}} Free Iraqi Army
Ansar al-Islam
IAI
{{flagicon image|Flag of Promised Day Brigades.svg|size=22px}} Mahdi Army
{{flagicon image|Shiism arabic blue.svg|size=22px}} Special Groups
{{flagicon image|Badr Organisation Military flag.svg|size=22px}} Badr Brigades
{{flagicon image|Kata'ib Hezbollah flag.svg|size=22px}} Kata'ib Hezbollah | Victory- Depletion of Iraqi insurgency, improvements in public security
- Re-establishment of democratic elections
- U.S.-Iraq Status of Forces Agreement
| Enrique Bolaños |
|