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 murder investigation has been launched after a man was found with gunshot wounds in Handsworth this afternoon (Tuesday 22 May).
Luna Jarvis, a student at Lincoln University, suffered a stroke at the age of 20. She is now looking to raise awareness for others.
Pollen: East and West Midlands Update