PeterZ wrote:n7axw wrote:[Re annexing northern islands particularly]
I agree whole heartedly. It would be one thing if the folk living in those places asked for the Empire's presense and quite another to force it on them. The EOC needs to guard against being over extended on a long term basis.
For those lands, "sphere of influence" fits just right.
Don
Sphere of Influence is a wonderfully nebulous term. One might say Cayleb's(?) boast that the ICN owns any strip of salt water capable of floating one of its ships defines what is within Charis' sphere of influence. Any body of land that is small enough and distant enough from the mainland to require ocean going ships trade could be said to fall within the influence of the ICN and by extension the EoC.
It could, yes, if the EoC cares to exercise that influence. Keeping ships in an area isn't free, and if it isn't free, it may not be worth it. And there's occupying and keeping the land itself too.
There's a tendency, based on convenience, and all else being equal, for spheres of influence to be spheres, or at least circles on a globe. It's harder and usually worth less to exercise power further away or with some obstacle along the direct path there.
I'm sure there's some Charisian interest in seizing every bit of wet line of communications and the land around it on Safehold, and they're currently better positioned than anyone else to do so, but (sorry, Isilith!) that doesn't mean that the costs of doing so are either affordable or repaid in benefits.
Natural borders - where they're not excuses for simple territorial aggrandizement or revanchism - would lie where you hit natural obstacles to the exercise of full, sovereign power, given current and foreseeable means. Spheres of influence run to wherever you can and care to exercise whatever degree of economic, political, diplomatic, or military power at least comparable to any peer.
Charis' natural borders get defined by coasts and distance, given their relative weakness on land and strength at sea, with distance defined by galleons nowadays. It's not entirely natural - they can make so much more claim to Armageddon Reef than, say, the Raven Lands, because the coast doesn't represent much of a barrier when they have no people trying to defend it or inland of it against them. But that's a natural border that they've no security need to fill, some social reasons not to touch, and little economic impetus to develop.
Spheres of influence are defined even more by resistance. One canny way of extending that sphere of influence is by minimizing reason for someone to resist you. Liberating Silkiah may be relatively easy, and exercising influence in it thereafter something you get easily with common interests. Conquering Silkiah will take a lot more effort, initially and thereafter, and would blow Charis' moral capital away.