The Russian military has set up a double line of trenches north of occupied Crimea.
Source: Skhemy (Schemes) with reference to satellite images and to Vadym Skibitskyi, Deputy Head of the Main Intelligence Directorate of the Ministry of Defenсe of Ukraine
Details: Satellite images show the appearance of new fortifications on both sides of the E-105 highway and near Lake Syvash, the Armiansk checkpoint and Perekopsk Val.

Skhemy (Schemes) reported that in November of last year, the trench line was already visible, it was branched out by March. The lines are connected with more trenches, and there is military equipment positioned between them.
Vadym Skibitskyi, Deputy Head of the Main Directorate of Intelligence of the Ministry of Defence of Ukraine, stressed that Russia is strengthening the north of Crimea the most.
Quote: “The infrastructure is maintained in combat readiness: a powerful land and aerial component located on the territory of Crimea, combat aircraft – [there are] about ninety of them, that is sixty, or about sixty combat helicopters situated in Crimea.
A group was created, a defensive group, which currently carries out fortification measures, equipping the defence line.”

Background:
- On 24 February, President Volodymyr Zelenskyy said that the country is preparing for the de-occupation of Crimea.
- The Russian-appointed “head” of Crimea, Sergey Aksenov, claims that Ukraine cannot de-occupy the peninsula due to the fortification and formation of defence.
Putler doesn’t have much confidence about his army of rapists keeping hold of Kherson.
I doubt those trenches will do much, the US has delivered trench jumpers. Plan B could be to fill a few trenches with dead Moskali invaders, at least they’ll have some use in the end.
Those trenches are useful only to catch rainwater. With the destruction of the Kerch Bridge and cutting off other supply venues, holding the Crimea will be untenable.