A hundred soldiers are being deployed to help fight the multiple fires that have been burning on Saddleworth Moor for four days.
Wing Commander Gary Lane from the RAF and Greater Manchester's Assistant Chief Fire Officer Tony Hunter have been explaining the massive operation:
Firefighters have been working through the night at the site above Stalybridge - which has been described as a "belt of fire".
An RAF helicopter is expected to arrive later to airlift firefighters and industrial water pumps to the top of the moors to tackle the difficult pockets of wildfire.
People are being urged to keep their windows shut today because of the increased air pollution.
Union says the growing risk represents "another strain on dwindling resources."
The massive moorland fire in Saddleworth is now being investigated as arson.
More than 100 firefighters from Greater Manchester Fire and Rescue Service are continuing to battle against 'unprecedented' moorland fires.