I thought guerilla warfare was "gorilla warfare" in which they trained special army gorillas to fight using camoflage techniques to keep from being seen. Each country had its own army gorillas and when people wanted to be sneaky and not be in a real war, they would send out the secret gorilla troops to hide in the forests and shoot each other.
Whoever had the most gorillas left at the end of the battle won.
A childhood belief about wars

you weren't the only one
83 of you believed this
- I thought “guerrilla tactics” meant fighting like a gorilla— beating your chest and that sort of thing.— Kai
- I was convinced that Gorilla soldiers in Vietnam in the 70's were real Gorillas attacking other Soldiers.— Mario
- that Guerilla Warfare was called "Gorilla Warfare" and it's about fighting gorillasAnon
- From a TV news program about freedom fighters, I though that `Gorrillas` could use guns.— adrian
- That "guerilla warfare" involved real Gorillas.— Geoffrey
- I used to beleive that gorilla wars were fought by gorillas.— Professor Luke