One thing that will help in these situations is the concept that there’s no such thing as “UK Europe unit” or a “UK Pacific unit”. UK Europe and Pacific are separate economies, not powers, so only the functions regarding income collection and expenditure are separated. Once a unit is mobilized, regardless of where that may be, it is simply a UK unit. All UK units move together, attack together, defend together, etc., without regard to where they originated.
True enough. However, because of various geopolitical factors (the wide dispersion of the UK’s territories around the world; the large size of the Pacific and of the Eurasian land mass; the awkward location of certain Axis territories), the UK’s assets have the drawback of being semi-compartamentalized. In other words: although it’s possible for the UK to build a unit with the income of one economy and deploy it at in IC associated with that economy and then send it to “reinforce” the other half of the board, it can potentially take a long trip by land or by sea for it to reach a particular location where a player would like to have it. On the other hand, it could be argued that these geopolitical factors serve to explain why the UK economies are considered separate in the first place.
I was thinking (not at all seriously) that some kind of “offshore tax shelter” house rule could be devised as a back-channel that would allow the UK to transfer its IPCs between the two halves of its economy without violating A&A’s version of the applicable tax laws (i.e., the rulebook). One OOB rule does come close, however: “Either economy can pay all or part of the cost of conducting Research and Development. The results apply to the power as a whole.”