Couple of notes:
All the units are British. There is no difference between UK Europe units and UK Pacific units. That is why they move and attack together. Each UK capital can ONLY collect money from and build on their side of the board territories (Exceptions: West India is Pacific Territory - West Canada is Europe Territory). For example; If India (Calcutta) is taken and West India is taken by the Axis and then UK Europe takes West India back they do not collect for it because it is a Pacific Territory. Other Allies taking West India back could collect for it. Also, if for some reason Borneo is still under British control with India captured UK Europe may not build any infrastructure there because it is a Pacific Territory and Europe money.