Your challenge if you choose to accept it, is for Britain to use the Industrial Revolution to view itself as the undisputed technological and military master of Europe with a view of bringing all of Europe under its hegemony. It must use its naval might primarily for the aim of building a "Greater European Co-Prosperity Sphere" and must see the Army and RN grab increasing amounts of power from Parliament. Over several decades, parts of the continent are annexed into Britain, militarily occupied, or turned into puppet states. Finally, the Army begins a rampage all across Europe, committing unfathomable atrocities including human germ testing, chemical weapons, deliberate starvation of continental Europeans, a "Rape of Paris", a "Three Alls" Policy, and so on.
Bonus points for a racial theory putting the British as the Master Race, the monarch elevated to literally divine status, and the Church of England used as a vehicle for the ideology.
Bonus points for a racial theory putting the British as the Master Race, the monarch elevated to literally divine status, and the Church of England used as a vehicle for the ideology.