It would be up to the Russians to make such a decision.
But in order to protect its population, Russia should adopt democracy, instead of arrogance and confrontation.
That would mean accepting quickly that Crimea and the Donbass republics are Ukrainian.
They did not surrender when they were invaded by Nazi Germany, which got very close to Moscow.
Why is Russia permitted, in your mind, to get away with waging war (either offensively or defensively) while other countries aren't?
The basic principles which should, in my opinion, govern a solution to this conflict are:
(1) Try to avoid war, including economic war in the form of various sanctions.
These "sanctions" are not forgotten, and may lead to a "hot" war.
So is invading another country and illegally annexing territory. And what happened because of Russia's actions in 2014? Well it looks like a hot war to me.
(2) Try to respect the will of the local people. This is called the principle of self-determination, it is part of the Charter of the United Nations and is therefore mandatory.
Only within the frameworks of the governing country in question. Which isn't what happened here. Only Ukraine is authorised to permit such referendums which hasn't happened.
To know the real wishes of local people, use reliable sources. Don't pay too much importance to minor details, such as whether a referendum was conducted by the Ukrainian government (and in agreement with Ukraine) or not.
Sources that I've seen from people in Kherson Oblast, for example, don't support Russia's annexation.
Ukraine considers for example Crimea as its "property", much like a painting or a laptop computer.
They don't seem to realize that there are human beings who live there.
And Russia doesn't think of these places as property in the same vein? I feel like their deportation of Ukrainian people and the separation of children from their families seems very property-like. As does their treatment of the Crimean Tatars.
Because this could end the war, and end all the suffering associated with the war.
Moscow has annexed four regions of Ukraine: the oblasts of Luhansk, Donetsk, Zaporizhzhia and Kherson.
At the time of annexation Russia controlled only one of those oblasts fully, Luhansk. Is your position now that Ukraine is to give up not only Crimea, but those four oblasts as well, including the parts that they hold?
Moscow hasn't annexed Kiev, Lviv, or even Odessa or Kharkiv.
Had Russia been able to break past Mykolaiv and reach Odesa you can be certain that you would be writing "Moscow has annexed six regions of Ukraine: the oblasts of Luhansk, Donetsk, Zaporizhzhia, Kherson, Nikolaev, and Odessa"
If Ukraine doesn't unnecessarily provoke its large Eastern neighbor (possibly excited by the US, UK and EU), stays away from NATO, lifts all the economic sanctions, and stops shelling Russia, I see no reason why the highly professional Russian leaders would want to attack Ukraine (again).
One reason they would want to attack Ukraine again, imperialistic ideals. Make Russia great again by bringing former parts of the country back under its control.
A second reason, Russia wants a land bridge to Transnistria, they're only two Ukrainian oblasts away from it and doing so would also landlock Ukraine putting pressure on them to get closer to Russia for access to the Black Sea ports.
I believe it is very bad taste for Ukraine to try to join a criminal organization, and even more so if the said criminal organization is hostile to Russia and/or its allies.
That's completely irrelevant to what I said at all. Why should Ukraine be forced to make decisions that are in Russia's best interests instead of what the Ukrainian people desire?
This fresh water is basically rainwater flowing freely, using infrastructure which was built by the Soviet Union.
So, this essentially doesn't cost anything to Ukraine.
Except for the upkeep costs involved for the man-made canal that became Ukrainian on their independence from the USSR.
If some repair work is needed specifically for Crimea, then Crimea should contribute financially.
So why didn't Russia do that? The canal was dammed because Russia was refusing to pay for their share of the water, which would go to the maintenance of the canal.
The details of a past treaty may be less important than the fundamental principle of self-determination of peoples (see
https://en.wikipedia.org/wiki/Self-determination).
If you actually read the Wikipedia page properly you would have seen this section.
The most important part is:
Wikipedia said:
However, there are far more self-identified nations than there are existing states and there is no legal process to redraw state boundaries according to the will of these peoples. According to the Helsinki Final Act of 1975, the UN, ICJ and international law experts, there is no contradiction between the principles of self-determination and territorial integrity, with the latter taking precedence.