A Leicestershire council is taking part in an exercise to see how the UK would cope with a major flooding emergency.
Exercise Watermark, being staged in Sutton-on-Sea in Lincolnshire, will test the region's capability to respond to a devastating coastal flood.
Charnwood Borough Council, along with colleagues from Nottinghamshire and Northamptonshire, will discuss how to cope with an influx of refugees.
Experts will plan how to move and rehouse tens of thousands of evacuees.
Peter Hinton, Charnwood Borough Council's emergency planning officer, said: " The serious flooding experienced in 2007 in the UK resulted in much work to both reduce the risk from flooding and try to mitigate the impact it should occur.
"How we collectively care for and rehouse large numbers of people who may not be able to return to their homes for many months, possibly years, is of keen interest to the government and the findings of the Charnwood workshop will be shared nationally to help other regions refine their emergency plans."
Exercise Watermark began on Wednesday and will run until Saturday.