For a decisive battle per se, I'm minded of when the Romans finally crushed the British Revolt at [en.wikipedia.org], finally quelling the uprising spurred on by the Britons' proud & defiant Queen Boudicca (who had sacked Londonium, killing most of the inhabitants and possibly decimating elements of The Roman Ninth Hispana Legion). +
Conflict between contemporary modern military forces and local warrior "regiments" - the above plus, much later on, the strife between the British Empire and The Zulus - and also against the Maoris - show how highly organized and well motivated local tribes were capable of winning battles against modern troops of the times; though not ultimately their Wars.
Post Edited (15-Apr-12 13:53)
- William Blake (And he wasn't born yesterday, either ..... )