I'm still mystified as to why the Russian flag isn't flying over Kiev by now. Just doesn't make sense.
It's interesting to read American perspectives, even if I often can't explain how they arrive at these perspectives.
Kiev is a sacred place for Putin, one he absolutely does not want to destroy, as he sees Kyiv and Kievan Rus' as the nucleus of Russian history. He has emphasized this repeatedly in the past.
The Russians' declared war aim is to conquer the four oblasts that have been declared Russian territory: Luhansk, Donetsk, Zaporizhia, and Kherson.
And even then, the Russian government offered Trump a compromise, in which the parts of the Kherson and Zaporizhia oblasts that lie to the right (west) of the Dnieper could remain Ukrainian.
He presumably offered this compromise because these territories across the Dnieper would be difficult to conquer and later difficult to hold in the event of a Ukrainian counterattack.
I suspect that he is in exchange calling for security zones in the Sumy and Kharkiv oblasts, along the Russian border.
Luhansk has already been almost completely captured, except for two small areas that no longer contain any villages.
The southern part of Donetsk is also completely occupied. The border into Dnipropetrovsk Oblast has already been crossed here.
To the northwest of Donetsk, the Slovyansk-Kramatorsk metropolitan area remains in Ukrainian hands. The Russians are gradually encircling it.
Of Kherson Oblast the entire area to the left (east) of the Dnieper River is in Russian hands.
In Zaporizhzhia Oblast, the Russians are slowly advancing toward the city of Zaporizhzhia, which lies directly on the Dnieper River. Currently, fighting is taking place in Stepnohirsk, about 20 km from Zaporizhzhia.
If these war aims are eventually achieved, but Ukraine does not give up and continues to fight, Russia will probably continue the war by conquering more territories east of the Dnieper, since the Dnieper represents a defensive line that Russia could hold for a very long time, even if no agreement is reached between the two states.