Your challenge, should you choose to accept it, is to push the the formation of the United Anglo States by at least one hundred years minimum, into the late 20th century at the earliest. Later is just as good.
Points if Europe remains divided (or at least not under the control of the one state that it is OTL), and even more if "anglo" changes from being a ethnic title to a cultural title earlier than the 90s Human Rights Movement of OTL.
GO!