I don’t know what the heck Russia was thinking when they gave up Crimea in the first place. That’s like us giving up California. We would retake it at some point because we need the ports.
Just imagine how much more desperate we would be if that lost territory included America's ONE AND ONLY year-round warm water port. Thankfully we don't have that crippling weakness, but Russia does and that's why Sevastopol is so critically important to Russia.