No, Crimea, Donetsk and Luhansk are Ukrainian.
Putin may make annexation declarations. However, this territory is not recognized by the rest of the world as Russian land.
Unfortunately, "might is right". Königsberg was a German city. Now it's Russian.
Yes, Crimea, Donetsk, Luhansk, Kherson and Zaporozhye are Russian.
Your surrendering army [those that aren't being ground into Ukieburger and serving as food for wild dogs and crows] can't do a thing about these Russian Federation territories.
And neither can your boy, Swiss citizen Denny Davydov [Update From Luzern!].
Those areas are historically Russian and the people in them want no part of the criminal government in Kiev. "ukraine(TM)" is not even a real county.