The British Empire retains sovereignty over 15 distinct nations and equal legal entities including the United Kingdom, Australia, Canada, New Zealand, Antigua and Barbuda, The Bahamas, Belize, Grenada, Jamaica, Papua New Guinea, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Solomon Islands and Tuvalu.
I suspect the Monarchy is the only thing holding the "empire" such as it is today together.
Certainly isn't the British parliament or civilian leadership!