Moldova. After you cross the Dniestr River, it’s nothing but flat open land all the way to Moscow. Also the place where Putin spent his 50th birthday.
Moldova needs to re-think her future. 1. Rejoin Romania, 2. Join Ukraine or 3. rejoin Putin new Russian Empire. Best bet is cut the best deal they can with Putin. Hoping the west will bail them out hasn’t worked for Ukraine very well.