The UK and other European countries are facing claims from 15 Caribbean countries for their role in the slave trade and the legacy they claim they are still suffering today.
The group of countries called CARICOM have come up with a ten-point list of demands.
Now a British lawyer has told ITV News they plan to present their case to the British government next month.
Martyn Day, senior partner at law firm Leigh Day, said:
"We are hoping to sign off the complaint letter next month and call for a conference shortly afterwards. I would have thought almost certainly the meeting would be with Government representatives- perhaps Foreign Secretary level."
More top news
Mexico's navy says there are no missing children at a collapsed school where rescuers have been hunting for a trapped girl.
A colder night ahead as temperatures slide under clearer skies. It will be very chilly out in rural spots.
Aboard the flight to the Invictus Games in Canada, the competitors already feel like winners before the plane has even touched down.