No, it is leaving us breathing room to turn on Defensive Polict/Support Subordinate before they come.
Like, the very next turn we can just send Support Subordinate to some of the northern provinces...or Lowlands if we are concerned about war flaring up yet again there. If we start any new trade post, we cannot really do that - even Far North one requires support to not die due to colder climate. Though it, at least, is not visibly endangered by pissed off rival powers with a big pool of violent people to throw at it.
But, like, point is, overextending is going to hurt everything else we do because, well, there is only so much actions to go around.
Assuming a) we get warning in time to do it and b) that whatever possible war we get in with the Trell is i) consuming most of our actions (dependent on other actions also consuming urgent actions) and ii) hasn't ended, getting involved in a war definitely would preclude preparatory actions for an imminent nomad invasion.
The Northern Trade Post only requires support to not die for ~3 turns, acc. to AN. I assume it would spend this time on Study + Farm actions and building up ties?
R.E. the Trell: Again, they are *not* natives. They're neighbors. So the NA at least aren't a good example(, especially if we're looking at blockades rather than the literal raids that being natives would allow for. I also don't know of any colonies they killed, but I guess that's because they didn't survive long enough for their name to matter. Poor homesteaders).
Rome + Persia are better, and I know nothing about Rome kicking out greek colonies. Didn't greek colonies come before Rome became a big thing? All I really know about historical greeks is like 1) war with Persia, 2) Homer, 3) the Aeneid was written because Ovid wanted Rome to seem cooler, 4)
arches columns, romans were the arches but hung flat roofs because they thought dome roofs were uncivilized 5) naked oil fights.
E: R.e. Losing the Western Wall. Yeah. We really need to found a March to the West of ST.
Also, only twice more our current height in northern extension and we'll have consumed a fair amount of the steppes, reducing the ability for horse-riding nomads to end us. Not that this would be worthwhile, as the rivers all follow where the ST already are. So we'd do like... a funnel. So ugly.
