Yes. I would like to add that in the beginning of 2014, when Russia illegally annexed Crimea, it was only the first step in the further development of the situation by military means. The essential question for them was to get ground corridor transportation to Crimea throughout the Ukrainian territory. That's why in July-August 2014, they have been doing their very best to get control over our southern city, Mariupol, and there was heavy friction between the pro-Russian forces and the regular forces of Ukraine, the ministry of the interior, and special security services. We've managed to protect Mariupol from their assault. Nevertheless, they've been using even MLRS to destroy some objects in Mariupol.
As far as I remember, some of the worst-case scenarios from British experts were whether Russia would get control over southeastern Ukraine, including Odessa, and a direct corridor to Transnistria, or we could get control over the left bank of Ukraine. You know probably that the territory of Ukraine is divided in two by our main river, the Dnieper. The worst worst-case scenario was, if they could get control over 70% of the Ukraine, then only a few regions on the west would be Ukrainians at least, so Lviv, Ternopil, Rivne, all these regions. As far as I understand, they didn't manage to do it, so now they're using both tanks and hybrids in order to get their goals.