On the topic of Sweden:
First, let me remind oneself that the personalities, private press, and alliance structure you have chosen for yourself trumps general advice. I recently played a house game where I, as Germany, allied with Russia. Even when Russia was board leader with 11,8,7,5,3 or something like that. Why? because they were my ally. And even with the rest of the board yelling at me, I didn't stab them for Sweden. Why? Because they were my ally.
The general advice for Sweden is in the context of being Germany. It's Fall 1901. You only have one set of move orders to base your board-state approximations on and not everyone has showed their true cards yet. Every single southern power tells you sternly to now allow Russia into Sweden, as well as England. France, sometimes yes, sometimes no.
Well, what's the situation? It seems like you're pissing off ~4.5 people, in a game where there's only 6 other people, just to give someone who could attack you more power. and not take it for yourself!
Well hold on, let's address that last statement.
You see, as Germany, canonically, bouncing Sweden or not is purely symbolic to Russia and the other powers on the board. The thing is that *whether or not* you bounce his fleet in Sweden you can force it anyways next year with
Build F KIE and/or BER
KIE/BER-BAL; DEN s KIE/BER-BAL
DEN s BAL-SWE; BAL-SWE
Because Russia has absolutely no way to stop the force to Baltic and rarely, if ever, will have something to support hold it. The only way to stop it, essentially, is having England support hold him but that is a rare instance since England and Russia's health, traditionally, are inversely proportional.
So the question isn't whether Germany wants Sweden for oneself, because whether they takes Sweden is fairly agnostic to whether he lets them in F01 or not, strangely enough.
However! Even though it doesn't affect Germany's strength doesn't mean it doesn't affect Russia's strength!
The Russia fleet on the south coast of St. Petersburg is a bit of an oddity; it can really only be used against Germany and to take Sweden to build another unit...elsewhere. Most of Russia's war is on land, and it by no means holds a defensive position in the south (Russia gets fucked all the time by a particularly aggressive A, T, or A/T). F STP(nc) or A STP are not truly uncommon builds when paired with another (from getting both RUM and SWE in 1901), but extremely rare as the only build, which can allow you to infer the proportional needs of Russia's theatres of war. The point is: Russia gaining Sweden, *even if* Germany immediately then takes it, *even if* Russia doesn't commit to a Northern campaign and just uses the build to make an army in the South, is **extremely** powerful for Russia (as compared to being bounced out in the first place). The ability to effectively slingshot the suboptimal unit to where it's more immediately needed is not to be underestimated. And for those of you who enjoy Northern campaigns as Russia, if the unit DOES get into Sweden then building A/F STP and supporting it to Norway, in many contexts where England is either Southern or Weak, can save the build at no cost to you (effectively having Germany take a dot from England).
So, in summary from this section:
Bounce or not: Germany can probably take Sweden so it doesn't effect his powerlevels
But! Russia in Sweden still makes Russia stronger even if he doesn't get to hold it
So that's a more tactical and strategic look at the outcomes. What about the diplomatic ones. Is a friendly Russia worth annoying 4.5 other people?
Well, first let's take a look at the "4.5" number.
France probably is super fine with you letting Russia take Sweden. He doesn't want a strong England or strong Germany and a strong Russia helps out with that. So let's drop him as half a person and that leaves us with : 4 people.
Next, let's take another look at the south. Russia almost certainly has at least one ally, and whether unironically or to make the other two have a Scary Other Person To Attack, that wants to see Russia do well. If it's an IR, Italy sincerely wants Russia to do well since they are depending on them to collapse and crush the other two. If it's AR, Austria probably is more on the side of wanting Turkey to be more likely to worry about Russia than themselves. Either way, it's easy enough to say at least one person in the south actually does want you to let Russia have Sweden, and that leaves us with : 3 people
3 people ain't bad. 3 people is only half the board, no more and no less, and you can't please everyone, unless you're Edi Birsan or Sasha Grey.
So, again, back to diplomatically. You're only annoying three people at worst probably, and it's probable that only one of them is of your immediate neighbors of EFR(IA doesn't count). So really it comes down to this:
Bounce Sweden if you want a stronger England and weaker Russia.
Let Sweden in if you want a weaker England and stronger Russia.
Take it anyways, or not, based on your personal relationships and goals with the other players.
Hopefully that brief summary on Sweden strategy was useful.
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Belgium is a bit of a different beast than Sweden because the geography doesn't allow the tactical outcomes to be nearly as pre-determined. England, France, and Germany all can lay roughly equal claim, both diplomatically and tactically, to it and it remains a source of contention in almost every game initially.
Warning: I have a particular bias about taking Belgium as England. I hate it. I feel like it's isolated, stranded, hurts my Diplomacy for no gain to my Strategy, and makes me feel pulled apart in multiple directions, and can easily be kicked out anyways. It's the same reason you don't see people often taking Munich with Tyrolia as Italy (especially if it's not in some concerted shenanigans with France in Burgundy): a single dot in 1901 that doesn't gain me any friends and I can't actually hold because it's surrounded by enemies and far away from my new builds just isn't worth it. Especially if you're headed North and not in the channel /personalbias
Who gets Belgium, in the context of an alliance, is nominally who needs it the most. Of course, good players will convince others that they need it the most or will simply command it in an authoritative manner. All in all though it's not that important here. HOW it's taken can be important. For example, if the orders are PIC-BEL; BUR s PIC-BEL, that's pretty anti-Germany IMO.
Frankly, Belgium isn't as interesting *a priori* as Sweden is due to the flexibility, and *post priori* is subject to individual conversations among the players rather than board state. All we can say for certain right now is that France, barring some peculiar play by German and England that would require extensive coordination and sacrifice, can force it if he wants it.
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SEV-RUM is peculiar. I don't like it at all unless there is an extensively coordinated and, since deal was made in 1901, trusting operation by AR to actually take BUL from an unsuspecting Turkey in F01. However this is not only extremely unlikely but falls apart in the face of a pitchfork opening by Turkey as seen here.
Whether Turkey gains one of Russia's centers of SEV/RUM is 50/50 coin flip left as an exercise to the reader, assuming no SER involvement, which is standard but a non-trivial assumption in a full press game.
The reason SEV-RUM is so suboptimal is two fold, one tactically and one strategically.
1: Tactics
SEV-RUM gives up the Black Sea. NOW, I wish to emphasize, in this case, I would suspect, but cannot know, it was a stab on Turkey's part and he promised a DMZ. Most probably. But Diplomacy exists as a superposition of states that collapses every adjutication and even with an agreement in place one must always know that this is a possibility. It's simply one of those existentially painful realities which makes this game so fun:
You know there are times where Turkey will be loyal and it's very powerful and you know there's times where Turkey will betray you and then you're screwed. And whether you go with the more conservative option or risky options is an option in itself that I reference in my initial post about Action vs Inaction. There's not much more to say here about that without beating a dead animal, but I wish to emphasize that, in my eyes, the move SEV-RUM *suggest that Russia trusted and wanted to work with Turkey* unless there's a VERY peculiar feint/sacrifice/etc going on here because it ties into the second problem with it.
2: Strategy
Let's say you're in an RT. There's something that's almost always true that you want, as the RT. You want RUM and BUL to both be Armies. It's almost self-evident: only armies can go further inland towards Austria, while fleets can only be used against each other.
SO
SEV-RUM
and
Desire(RT)
have *huge* cognitive dissonance. There's one exception:
A slingshot Juggernaught.
A personal guilty pleasure favorite of mine in F2F much to the chagrin of 2ndWhiteLine, Abgemacht, etc, a Slingshot Juggernaut (SJ) involves purposely dislodging and then voluntarily disbanding Russia's southern fleet in order to rebuild it up in STP. There's many ways to go about this, some more favorable to Russia and some more favorable to Turkey, and this one is particularly favorable to Turkey obviously since he holds all the power.
The dirty technical details:
ARM-RUM
BLA c ARM-RUM
BUL s ARM-RUM
RUM holds
GAL/UKR do stuff, maybe cover SEV for UKR and go VIEorBUD for GAL.
Then, during retreats, Russia voluntarily disbands instead of retreats and then has an extra unit for builds, where it can be built, probably in the north, where it's more useful for the alliance.
I don't wish to make any statements whether Russia should accept this (both because Turkey might come out better in the long run and/or stab the shit out of Russia) or whether Turkey should accept this (both because Russia might come out better in the long run and/or he should just stab the shit out of Russia), I'm just saying it's a possibility. A possibility that Russia should almost assuredly be thinking about offering to get out of his position right now.
But that's the only way these Russian moves make sense, and even then it's very scary.
I'd like to take this time to remind all players they should be keeping notes/diary in order to aid their End Of Game statements.