I know the diffrence the union is between the 4 countries wales Scotland England and Northern Ireland they sighned the union act were as the brittish empire is country's that were conquered but If your going too refer too the union of the crowns in the 1600s or the merging of the Scottish parlment and the English parlment in 1706 sure but in my opinion if there no diffrence between being conquered and having no say in a parliament that you've joined we're not in the acts of queens and kings anymore the people are now in charge on who we elect too control are life's and country and if you thin