A thread🧵on Luhansk oblast mammoth 🇷🇺 trench project.
The start of this project was issued at the same time as the withdrawal from Kherson (end of oct).
I'll go through some of the data available and point the obvious *without going in too deep*.
1/20(n)
The project has been going on already for over a month now and mostly all AT-trenches are now ready. Placement of dragon's teeth is still taking place and almost no infantry trenches have yet been completed in the most important strategic chokepoints.
2/n
As winter approaches and the ground starts to freeze the hurry is valid. Digging frozen ground is a way more labor intensive task than warm loose soil.
With this said and out of the way let's take a closer look into what is going on. Breakdown by numbers in this map.
3/n
North (1.) is the segment that is lagging the most behind in the construction work, if the objective is to have one single defensive line.
This can be partly explained by weather. Comparing southern Luhansk with northern gives an average difference of roughly two degrees.
4/n
During a season when temperatures round the freezing point of water this can be a major issue when terramorphing. As of today (4.12.) some progress has been made to close the gap (red square) but there is still a lot to do. At least they have priorized the high ground.
5/n
With OSINT in mind the current weather is perfect for satellite tracking of movement tho. With wet ground which is slightly frozen from the top vehicles still leave deep tracks which are quite visible from satellite images and when the snowcover comes things get even easier.
6/n
As an example let's use the village of Novonikanorovka south of Pokrovske. We can see the building process of the trenches, as well as placing of teeth (underway).
Tracks are quite highly visible (dark brown).
By the power of deduction one can spot passageways as well...
7/n
as suspicious buildings. For example, from the building supply area tracks lead to a "gate" thru the trenches and all the way to the village with P-66 running thru it.
A warehouse stands out, so satellite image comparison can be conducted.
Bingo. More dragons teeth.
8/n
As the importance of the weather and tracks left behind to observe what's going on is just my sub-point, I shalln't be going through them all.
Jumping to (2.) second view of how the building process is going east from Poltava.
9/n
This zone is like the previous one: AT-trenches mostly dug, dragons teeth partially placed, no infantry trenches yet. The rest of the trenching project is pretty much the same as this.
Here's a closeup south-east of Nyz. Duvanka.
10/n
Going further south (3.) the situation is mostly similar, slightly lagging behind, but AT-trenches already complete.
11/n
An example of what this segment looks like looking closer is like this. Next to Svatove. The highway is likely used to transport supplies and personel to work. Assuming they're not staying in Svatove, again, following the tracks we get to Korzhove where the tracks end.
12/n
A verification can be done quickly with a timelapse once more. (49.372463,38.361724)
13/n
When moving to the last segment (4.) south which ends before Novokrasnyanka north of Severodonetsk we can see many more tracks to follow.
14/n
As a closeup to this segment I chose west of Baranykivka. Lot of traffic, an old factory in the background, highest ground looking west from the east bank.
This zone will be worth following whether additional hints of presence will pop up here.
* 4.12. images, not these
15/n
To wrap up what has been said:
- As it is a race against time vs ease of digging, AT-trenches have been priorized over other defenses
- Tracks are easy to follow from now on
- The trench system is almost continuous, 85km long
- Protects railwayline to the east
16/n
- This strench strategy varies from the one seen in the south where little fortifications are built on strategic points.
- Here we have a thin line of defenses for a long way, which has its advantages and disadvantages.
- The work is yet far from complete, so lets see.
17/n
This is all for now.
My point was to raise awareness of this mammoth in the north as it's still in progress.
I didn't go into detailed investigation for the reason it is a huge rabbit hole with A LOT to find out. There is so much material visible from space.
18/n
This area consists mainly of 🇷🇺 troops that suffered heavy losses during the UA Kharkiv offensive.
An interesting radar signature caught with Sentinel-1 in todays images at (45.34947, 32.50320), Mayak, Crimea (09/05/2023).
Usually the C-band interference does not come in X-shape. It is also notable that there is no long range interference like in your average AA radars.
If pinpointing where the X marks the spot by overlaying both Sentinel-1 and Sentinel-2 images, we're guided to this small spot with light colored items.
There is also an active radar dome complex nearby to the east.
A timelapse demonstrates activity in the pinpointed zone. It is likely tho that whatever caused the interference was there. This however does not proof anything by itself and would require further investigation.
Russia has recently built a roughly 200km long uniform AT-ditch from Donetsk to Rostov. The building of this trench segment started in Dec 2022 and it was completed few weeks ago.
From Donetsk📌47.1676,39.5381
To Rostov-on-Don📌48.2002,38.0027
For now it is just the antitank-ditch complete with a few 'strongholds' along the way. It is highly likely to evolve in the liking of the trench line built in Luhansk: likely next to appear will be infantry trenches and with time dragons teeth accompanied by mine fields.
The trench line goes mainly along T0507, 60K-6 and A-280, following the roads for most parts.
Topographically we can see the fortifications focusing on staying on high ground.
Since some big cities along the route are left unprotected we might see some branching in the future.
The P-47 has been in the back of my mind for a while now. Why fortify that one road so hard? Is it 100% just strategical importance? Now we know it isnt.
From Kherson to Henichesk the rule of thumb seems to be along P-47: every 7-12km one large defensive structure.
2/5
In theory, they could build still a few 'pit stop defenses' before 'the new capital'.
For example, *so far* the last defense along P-47 in front of Novotroitske.
RU command gave an order at the end of October for troops to dig defensive structures near any significant town village or road.
Kherson-Zaporizhzia. Only new trenches.
A moderate thread on the russian trench-craze, documented with low-res Sentinel-2 images taken 5.11.2022.
Let's start by looking at the first three ones. This timelapse covers three distinct trench complexes by the P-47 road (direction from north-west to south-east).
1. Kakhovs'kyi district, Khersonska, Ukraina
Three to four layers of trenches. Building started bit over a week ago.
A look to Chaikovs'ke (Crimea) 🇷🇺 military unit and it's training ground. Focus on activity over a period of time as well as what conclusions can be drawn from this.
Mini 🧵
As I'm using low-res Sentinel images, here is a higher quality apple maps image to give a picture.
1/
The apple maps picture gives us an idea of what is there.
- Barracks for a whole unit
- Training grounds
- Storage halls and trucks
- Shooting grounds
The place has it's own google maps review page. Looks like they are/were Black Sea Fleet marines.
Now we know who is/was there and what is there, so let's check out the activity since July.
The shooting range is in good use, as well as the warehouses and truck parking spots. What doesn't seem to see so much use is the forested area where military drills are usually held.
Activity check to an earthwalled part of a military training ground in Kirovske Raion (Crimea). Multiple vehicles can be seen moving in and out for an extended period of time.
The earthwalled vehicle parking spot is part of an extended training ground which extends for quite a large area (approx 18km² freeform: 5.5km wide and 3.5km long).
2/
Another sign that the training ground is in active use is if we take a look to the sc. 'admin building' of the area. Vehicles and moved earth.