I was spot on in regards to the state of alliances in Northern and Eastern Europe. Though I expected - and this may have actually happened -
@KaiserJohan and
@BjornB to make a secret deal just before or even during the Great Coalition War. This deal would entail Lithuania not joining the war or joining passively. Thereafter, Lithuania would guard the Byzantine Northern front in exchange for the Siberian frontier. It’s a match made in heaven.
Sweden refusing the Byzantine call to arms makes him an untrustworthy ally. Meanwhile Lithuania is suffocated between their own useless ally Poland, Kazan who is currently overtly the Byzantine primary enemy, and who blocks Lithuania’s way east, and lastly, this Byzantine untrustworthy ally. To everyone’s (except for those consumed) satisfaction, Hungary would get Poland, Lithuania would swallow Kazan, and Byzantium would be free to prance in the Close East. Lithuania would be dependent on Byzantine favour which makes them an excellent ally for the true Romans!
There’s also Morocco who, due to their geography, have a lot of potential value as a Byzantine ally. If the Ottomans (I meant to say Byzantines) saved them, and helped them take over Maghreb, then together, they could secure the Mediterranean from any naval invasion from the rest of Europe. That’s already pretty valuable, but then, Morocco could snowball over sub Saharan Africa, grow from a gimmicky ally to one who can provide actual tangible military support. They could also deny the Entente colonisation routes over South Africa, and trade money that comes from there. It’s a long-term possibility, but those usually pay off the most. And Morocco has nothing to lose and everything to gain by clinging to Byzantium.
Going back to Northern Europe, if Lithuania conquered Scandinavia, which they actually could do without suffering an AI or player coalitions, if hey have Byzantine backing, then their unholy alliance would pincer Europe. That would be a sight! And in the meantime, Byzantium could remain the hegemon, by pushing into the Horn of Africa and Persia. Alas, Italy is their goal.
I think I’m getting ahead of myself here :O. Also, where are the Castilian colonies? I see Portuguese and English, but where is Castile?