The regions Russia is taking from Ukraine have some value in terms of GDP. It's interesting that the Freudian slip US offering involved an additional minerals deal (as in, this is the main interest of the taking parties). Russia is not going to give back GDP, and that's probably behind the break in negotiations. Russia is not relinquishing any gains, and the US wants more resources, and there is no guarantee given to Ukraine regarding its remaining territorial integrity. They are trying to make Ukraine eat shit.