Russia is not going to invade the Ukraine further. Trump is right. Russia wanted the Crimea back (90% Russian population) as it is where a huge chunk of the Russian navy fleet is stationed. They weren’t going to let it fall under the control of the new Ukranian pro West regime. It was in Russia’s vested interest to get their traditional warm water port city and gateway to the Black Sea, back. They have gotten what they want and like Trump, I believe that is as far as Russia plans on going in the Ukraine.
Russia, USA and others signed a treaty with Ukraine recognizing its teritory in exchange for Ukraine surrendering its nukes. It appears that Russia signs treaties when convenient and breaks them as convenient. Today Ukraine, tomorrow Alaska!
Isn’t Crimea an island off of Ukraine?