So far Ukraine Has lost Lugansk, Donetsk, Kherson,Zaporizhizjia. Oblasts(Provinces).
The more the war continues they will lose Mykolyaiv, Kirovgrad,Dnipropertovsk, Kharkiv,Summy, Cherniv and Poltava.
In 2014 they did a Genious move by signing Minsk deal which gave them more time to regroup, rearm and retrain.
If Zelensky had just accepted for Neutrality they would still be defacto leaders of Donbass. A big Miscalculation for them and Europe.