Is this thread still going?????
They need to train somewhere really ... and the more realistic setting the better.
Where I have lived in and around Sydney metro and out the Hawkesbury over the years, I have witnessed it ... and the occasions that it is done is very rare (which means they barely get a chance to do much of this training in the first place ... which is not a good thing).
There's no need for notice really .... although there was anyway (
https://www.army.gov.au/media-room/n...aining-notices).
If there was some such future event where there may be an attack ... there'll be the same lot out there complaining that they were not given any notice either about that too.