I too believed that guerrilla warfare involved gorillas. When the newsreaders were reporting the latest guerrilla activity I used to watch the screen very intently, hoping to see the gorillas. I thought it was amazing, but none of the grown-ups were surprised so I assumed it must be normal. I thought I would be less amazed when I was a grown-up myself.
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