I would also expect that Latvia gives it's minorities certain rights because it's legally obliged to do so under EU law that Ukraine didn't.
This isn't directly relevant to the discussion, but if Russia were ever to attack Latvia, their excuse would probably precisely be the treatment of ethnic Russians. It is, in fact, a recurring theme in Russian media.
The reason for this is that in order to be eligible for a full citizenship one is required to pass Latvian language competency and Latvian history exams. What is more, Latvia allows dual citizenship, but only if the other citizenship is of a country that belongs to the list that is specified by a law. Russia is not on the list.
Citizens of the former USSR who possess neither Latvian nor other citizenship who live in Latvia are eligible for a non-citizen passport. They are allowed to naturalize provided they pass the aforementioned exams. However, for various reasons many are unwilling (few are unable) to do so. For example, traveling to Russia is easier for a non-citizen than a citizen of Latvia. However, it is easier to work and travel in the Schengen Area if one is a non-citizen of Latvia than a citizen of Russia. Thus some people might find it disadvantageous to choose one citizenship (in their day-to-day lives traveling is more important than having the right to vote).
How such an unusual situation came into existence? If I understand correctly, in early 1990s Latvia desperately tried to avoid breakaway regions, because in 1989 only 49% of the non-Latvian population supported the idea of the independence of Latvia (the number of Latvians supporting the idea made up 93%). It should be noted that, according to wikipedia, such situation is not without a precedent:
Peter Van Elsuwege, a scholar in European law at Ghent University, states that the Latvian law is grounded upon the established legal principle that persons who settle under the rule of an occupying power gain no automatic right to nationality. A number of historic precedents support this, according to Van Elsuwege, most notably the case of Alsace-Lorraine when the French on recovering the territory in 1918 did not grant citizenship to German settlers despite Germany having annexed the territory 47 years earlier in 1871.
However, as you can imagine, the fact that these non-citizens (mostly Russians) do not have voting rights is a target of outrage in Russian media. Furthermore, many ethnic Russians in Latvia watch a lot of it and this results in them having different opinions (about e.g. situation in Ukraine) than ethnic Latvians. However, it is not clear whether they would actually support Russia in the case of armed conflict.
Please note that I'm neither Latvian, nor an expert on Latvian law, therefore the story above may contain some inaccuracies. Still, LW readers might find it helpful for their probability estimates of potential wars and/or other events.
Thank you. I'd wondered about whether ethnic Russians were actually being mistreated, though this doesn't answer the question of whether they were being mistreated in Ukraine.
The next question is whether they've being treated differently now that Russia is doing some invading.
Some of the comments on the link by James_Miller exactly six months ago provided very specific estimates of how the events might turn out:
James_Miller:
Me:
"Russians intervening militarily" could be anything from posturing to weapon shipments to a surgical strike to a Czechoslovakia-style tank-roll or Afghanistan invasion. My guess that the odds of the latter is below 5%.
A bet between James_Miller and solipsist:
I will bet you $20 U.S. (mine) vs $100 (yours) that Russian tanks will be involved in combat in the Ukraine within 60 days. So in 60 days I will pay you $20 if I lose the bet, but you pay me $100 if I win.
While it is hard to do any meaningful calibration based on a single event, there must be lessons to learn from it. Given that Russian armored columns are said to capture key Ukrainian towns today, the first part of James_Miller's prediction has come true, even if it took 3 times longer than he estimated.
Note that even the most pessimistic person in that conversation (James) was probably too optimistic. My estimate of 5% appears way too low in retrospect, and I would probably bump it to 50% for a similar event in the future.
Now, given that the first prediction came true, how would one reevaluate the odds of the two further escalations he listed? I still feel that there is no way there will be a "conventional battle" between Russia and NATO, but having just been proven wrong makes me doubt my assumptions. If anything, maybe I should give more weight to what James_Miller (or at least Dan Carlin) has to say on the issue. And if I had any skin in the game, I would probably be even more cautious.