It depends what is meant by "unprovoked". An emu always has a reason for whatever it does, and what may seem unprovoked to humans is not necessarily so to emus. An emu will only attack if it believes there is a threat to its chicks or itself, so stories of "unprovoked attacks" on cars or people are probably inflated. For whatever reason, the emu in question was feeling threatened at the time.
Pre-emptive strike
The dog attacked the mailman unprovoked, without any reason or warning.
aggression
it doesnt it eats grasshopers,@ plants
'Ambush' is one possible answer.
You need to have 2 or more emus, to make a mob!
People that like emus will get angry and make signs and there will be lesser emus
only if it is provoked. it has been known to attack unprovoked but that is in a rare occasion
December 7, 1941. It it wasn't much of a battle. It was an unprovoked attack.
Type your answer here... Germany did an unprovoked attack on Poland
An unprovoked attack by North Korea on South Korea in June 1950
The unprovoked attack by the Japanese on Pearl Harbour