Emil Kastehelmi Profile picture
Apr 21, 2023 10 tweets 5 min read Read on X
Heavy fighting on the northern side of Bakhmut. In the Khromove road area, despite constant attacks and shelling, Russians have not made any significant progress for weeks.

Our #OSINT team acquired some satellite images which will explain why the attack has mostly halted. 1/🧵 Image
The main reason for the static situation are the extensive fortifications dug by the Ukrainians. They were well prepared to defend against the Russians, and they have held their positions even under the most difficult conditions, even longer than I initially expected. 2/ Image
The general situation in the area looks like this. There can be some slight errors, as some areas are constantly changing hands. Russians are pushing from all sides, and Ukraine is conducting small-scale counterattacks inside the city and the surrounding areas. 3/ Image
The main fighting is taking place in the trenches near the Khromove road. The Russians have concentrated their artillery fire here, and the ground is black from the shelling. Even though the fortifications are damaged, they still seem to be somewhat usable. 4/ Image
This famous clip shows what fighting on the ground looks like. I'm usually trying to avoid the phrase "this looks like WW1", but the video coupled with the satellite imagery does give me a feeling that I've seen this before, so to say. 5/

The Khromove road is not in active use anymore, and has not been for a few weeks, as it has become too dangerous. Satellite images show multiple destroyed vehicles on the side of the road.

Main supply routes go from Ivanivske to Bakhmut. 6/ Image
Holding this area is extremely important for Ukraine. If it falls, Russians are at visual range from the remaining supply roads. If they manage continue towards the heights behind Ivanivske, Ukraine is most likely forced to abandon Bakhmut. 7/
This battle shows again, that trenches do matter. Now Ukraine is using them to repel Russian attacks, but it will be difficult when Ukraine needs to punch through the Russian fortifications in multiple directions during their spring offensive. HIMARS isn't the answer to this. 8/
An interesting little detail: A rather large fire in the Russian-controlled zone, next to a forest strip. It is unclear what is burning there, but there is a lot of smoke coming out of it. 9/ Image
Our team (me, @J_JHelin, @EerikMatero, @Inkvisiit and others) continues to monitor the situation. We're constantly updating our interactive map.

Also, more satellite stuff to come. Thanks to @wihurinrahasto for making this possible. 10/10

scribblemaps.com/maps/view/The-…

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More from @emilkastehelmi

Jul 3
According to our data, the Russians did not accelerate their advance during June. The pace isn't slow, but most of the Russian gains last month were in less crucial areas.

It can be argued that Russia mostly wasted June without achieving significant success. 1/
The situation isn't great for Ukraine, but it could be worse.

The salient between Pokrovsk and Kostiantynivka is still an issue, but it didn't rapidly expand in June. The front in Sumy was also stabilized. The worst-case scenarios didn't materialize, at least not yet. 2/
A large part of the Russian gains were south of Pokrovsk, where they are pushing towards the administrative borders of Donetsk oblast. Entering Dnipropetrovsk oblast doesn't change the general situation much, even though there's a lot of Russian propaganda about it. 3/
Read 5 tweets
Jun 5
On June 1, Ukraine conducted a successful operation targeting Russian strategic bombers and other aircraft.

Our battle damage assessment can confirm the following losses: 12 destroyed and 3 damaged aircraft, of which 14 are strategic bombers and 1 is a transport aircraft. 1/ Image
From videos and satellite images, 23 distinct aircraft were identified in total as potentially targeted. The condition of 4 aircraft seen in videos remains unclear. Available evidence doesn’t allow for assessing potential damage or whether nearby drones even detonated. 2/ Image
The highest possible number for total losses is 19, if all aircraft in unknown condition are actually damaged. However, this can’t be confirmed at the moment.

In 4 cases, it appears the drones likely missed, did not explode or cause visible damage for other reasons. 3/
Read 17 tweets
Jun 1
Ukraine has struck multiple strategic bombers in Olenya, Murmansk oblast, 1800 km from Ukraine. This is one of the most successful drone strikes against against Russian air bases in the entire war. The extent of the damage is yet unclear, but I can already say it's significant. 1/
Russia had transferred the valuable planes to Olenya to avoid the exact scenario we're seeing on the videos and photos coming from the area. Bombers operating from the field have repeatedly struck Ukraine with cruise missiles. 2/ Image
These are major and expensive losses for Russia that can't be replaced quickly.

Additionally, the air base in Belaya, roughly 4300 km from Ukraine, has been hit. Also Dyagilevo and Ivanovo air bases are burning. This is a very, very successful day for Ukraine. 3/
Read 5 tweets
May 28
During April and May, the Russians formed a dangerous salient against the Ukrainian defenses between Kostiantynivka and Pokrovsk.

The so-called spring offensive has progressed relatively quickly, and serious issues may lie ahead in the near future. 1/ Image
Defending forces in the area initially consisted of newer, less capable brigades, such as the 142nd, 155th & 157th. Elements from other units were also present. Reserves have been brought in – first the 36th marine brigade, and now the 82nd air assault brigade, among others. 2/
Russia's probable operational objectives for the coming months in the area include:

Formation of an encirclement threat around Kostiantynivka

Formation of an encirclement threat around Pokrovsk

Disruption of Ukrainian supply & command elements in the cities in the AO 3/ Image
Read 13 tweets
May 7
Russia has five active air bases near northern Finland and Norway. In this thread, I will go through the bases and their recent changes in activity and infrastructure, and how the war in Ukraine has affected them.

There have been some surprising developments. 1/ Image
The five air bases are located in Murmansk oblast: Severomorsk-1, -2 and -3, Monchegorsk and Olenya. There are more air bases near Finland further south in Karelia and St. Petersburg, but currently most of the largest and militarily active ones are in the north. 2/ Image
In June 2022 Russia announced plans to repair several of the northern air bases. The work has begun. In Severomorsk-1, fighter shelters on the eastern side of the field were repaired somewhere between 2023-24. However, in Severomorsk-2, there are more surprising changes. 3/ Image
Read 13 tweets
May 2
Russia is developing its military infrastructure and conducting organizational reforms near Nato’s northern flank, especially near Finland. News agencies from different countries have asked me about the topic, and in this thread I will share some recent observations. 1/ Image
Firstly, a brief overview of the organisational level. In 2024, Russia reestablished the Leningrad Military District (LMD) as a part of a larger reform of the military districts. The LMD covers the north-western Russia, including Baltic and arctic directions. 2/ Image
At the same time, Russia is expanding its existing brigades into divisions and bringing entirely new troops into Finland's neighboring regions. For example, the 138th Guards Motor Rifle Brigade from Kamenka was recently transformed into the 69th Motor Rifle Division. 3/ Image
Read 12 tweets

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