This is a sort of rapid response armed police force which in the event of major civil unrest in say Greece could be "invited " by the Greek Government to "help" restore peace or should that be impose order. Not suggestion that is going to happen as yet but just topical example.
Remember Blair and his government intentionally opened the UK to massive immigration -what would most destabilise a country -ethnic divisions and economic collapse .
Along with his Human Rights Act Blairs government also passed the Civil Contingencies Act 2004 [Version of Hitlers 1933 Enabling Act }
Membership of the EU forbids the imposition of the death penalty in any circumstance EXCLUDING civil insurrection.