Ukraine downs Russian hypersonic missile with US Patriot
apnews.com
apnews.com
Patriot PAC-3 interceptors are literally designed to shoot down SRBMs, it's a primary use case. Many fundamental aspects of their design such as using (pseudo) hit-to-kill interception instead of a more normal blast fragmentation warhead are consequences of this focus. It's not surprising that this happened once Ukraine got modern Patriots.
For as long as Putin's regime stands, klepto elites around him will be sure that, at least within Russian borders, they are still kings, and they can live the rest of their lives surrounded by long legged mistresses, and drowning in luxury.
If Putin is seen as weak, any small time gang will think that moneys, and power of Russia's top oligarchs are for grabs. It will be then, when a preemptive coup attempt can happen.
That wasn’t exactly the primary issue with Afghanistan.
Re regret, I guess it depends on who you mean by 'Russia". Looking at their faces I think most Russian top officials apart from Putin were rather horrified from the start.