You cannot have a civil war if it is between countries. A civil war occurs when citizens of one nation/group fight amongst themselves. I don't know of any synonyms for this though, sorry. :(
The noun 'war' is an abstract noun, a word for a sum of things that constitute a definition of war; a word for a concept.
The word guerrilla comes from the French word "guerre" meaning war. The word "guerrilla" in Spanish also means "little war". Hence the word guerrilla is used to mean unconventional tactics, where lightly armed combatants take on more heavily armed and static armies in mobile attacks. It derives from the Peninsula War 1807-1814, where lightly armed civilian armies (or militia) fought Napoleon's forces.
In English, we capitalize the word war when we are naming a particular war. World War I was "the war to end all wars".
war means
A word that means "opposed to war " is "Pacifism".
Emancipate is a word that means free.
Antebellum. Ante means before and bellum means war.
The root word for "bellicose" is the Latin word "bellum," which means war.
Hostilities.
coloquialism
Victory.
bellicose
The 5-letter word peace means the absence of war.
Adversarius belli is the Latin equivalent of 'person opposed to war'. In the word by word translation, the noun 'adversarius' means 'opponent'. The noun 'belli' means 'war'.
Spanish word for "little war" is Guerillas or Guerrillas
Wartime