Hundreds of protesters are due to start marching from Lincoln to RAF Waddington against the use of armed drone aircraft.
It's the first time the Ministry of Defence has based the spy planes in the UK, which will be deployed over Afghanistan.
Today's march will start at South Park, down the A15 Cross O'Cliff hill and down Grantham Road to a Peace camp set up outside the airbase.
More top news
A traffic warden was issuing parking fines outside a school, but that's not why parents are angry at him...
The father of Jeremiah Regis-Ngaujah was in court to see his son's killer jailed.
Chevaze Sanchez McGregor, who murdered his two-year-old stepson, can be seen shoving family members following an argument.