Abortion and Population

[Thumpalumpacus]

If every single Ukrainian converted to Muscovite Orthodoxy tomorrow then there would be no war since they would all agree with Putin since the Church is on his side. They would become Russians.

No, they would still have to concede independence for this war to end.

It's a land grab but religious wars are also (sometimes) about land grab. I was reading the article on Wikipedia about Religious Wars and some consider the Yugoslav wars in the early 1990s to be religious wars which were similar to the war in Ukraine since it was about Serbia trying to take lands in Croatia and Bosnia, but it also involved religion.

Those aren't really comparable, I think, in that they emphasize race as well. @The Grand Nudger is much better equipped than I to speak to this, given his personal experience there, but my understanding is that while Catholic vs Muslim played a role, so too did race to even a greater scale.

On the other hand, genetically and linguistically Ukrainians and Russians are quite similar; indeed, Putin, Peskov, and other gum-flappers have tried to argue that Ukrainians are essentially breakaway Russians and one purpose of the Russian invasion is to bring the black sheep back into the fold.

Now this shows that religious war is sometimes hard to define, but I would not say that necessarily wrong to call the war in Ukraine a religious war, especially if Putin is trying to establish Tsarist Russia. Tsar is supposedly chosen by god and his land was given to him by god.

Again, trying to put together Tsarist Russia back together geographically is not the same as claiming that God has given one the the right to invade, or that one is claiming to be God's Anointed. Putin hasn't appealed to Divine Order in reconstructing Old Russia. He's appealed to Russian nationalism.

Extrapolating from that mistaken idea that this is a religious war is mistaken, I think; your arguments here notwithstanding, professional analysis and propaganda from both sides rarely feature any religious element.

"Religious war" isn't that hard to define. It's a war fought primarily for religious reasons. This is not one of them.