Russian casualties among their combat engineering forces have been very light. Most engineering units are still at the same strength level as they were in February last year. There is a huge qualitative gap between the specialist non-combat units like the combat engineers and the frontline combat units at this point.
Ukraine got through the first line of defenses pretty easily. The best defenses in the world are useless if you don't put anybody in the fortifications.
Russia's decision to send their units out in front of their defenses to attack the Ukrainians instead of waiting for Ukraine to come to them is incredibly stupid. That's like knowing you're going into a gun fight and taking off your Kevlar body armor.
Shooting down missiles moving at ballistic speeds is a very complicated problem. The Patriot was the first system designed for this and it's early versions were not that great at it. It has gotten much better since the first Gulf War, but they have had 30 years to work on it.
The Pantsir was never designed to hit missiles, it was designed as an anti-aircraft system to shoot down jets. Even if the design can be changed enough to make it an effective anti-missile platform, that will likely take major electronics improvements as well as a lot of software that will probably take years to write and debug effectively. With the sanctions and Russia's brain drain they don't have the resources to make those upgrades even if they knew what to do.
My partner has some Amish popcorn she really likes. Looks like time to break that out...
The guy quotes reliable Twitter channels.
What exactly is happening in Russia is very confusing. Apparently a fire broke out at a military base just outside Moscow
This could go several different ways. Wagner appears to be getting help from some other Russian army units, which shows more than just a rebellion and sides shaping up for a real civil war.
If a civil war does break out, pretty much all the commanders in the field in Ukraine will want to pull out of Ukraine and back to Russia as quickly as possible to preserve their forces for the civil war, no matter which side they choose. That could result in the Ukrainian part of this war ending within weeks.
There were stories last year of oligarchs forming their own PMCs in record numbers. I would expect most if not all to throw their lot in with Prigozhin if Prigozhin's forces survive the next couple of days.
This could just be a rebellion that will be put down by Moscow fairly quickly, or it could turn into a full blown civil war. A lot depends on how many join Prigozhin's side. If Prigozhin gets a fairly sizable force, then the civil war is on. If he doesn't, Wagner will be crushed from the weight of loyalist forces, though Wagner will do a lot of damage to those forces before they succumb.
Wagner is the best fighting force Russia has, they are just small compared to the regular army.
If a full blown civil war breaks out, I would expect the outer regions of Russia to start breaking off from Moscow and declaring their own country. Chechnya will probably be first. If Chechnya declares independence and Moscow effectively does nothing, then other provinces will start breaking away too.
Many larger armies like the US Army have a mix of people from all over the country. Go to any US Army unit of any size and you will likely find people from each of the 50 states. That makes it difficult for a unit to stay together in the event of a civil war. US National Guard units are more regional though being drawn from individual states.
A lot of Russia's army is made up of regional units. Even the elite units like the airborne troops are made up in large part of the people from the region around the main base for the unit. The regular line units are even more uni-cultural. In a Russian break up scenario most of these units are going to switch their loyalty to their home province and not throw their lot in with Moscow.
Because the Moscow/St Petersburg region doesn't not send many people to the army, there are few units with regional loyalty to there and Moscow will be left with a deficit of troops to try and take back the rural provinces even if the rebellion is put down.
If this rebellion lasts more than a few days, the civil war could end up going on for years. The good news for Ukraine is they will finally be at peace and their job will just be to fortify their borders, maybe help a faction that they like in Russia, but otherwise get on with the job of rebuilding the country.