Do you realize that Tajikistan and Russia are different countries?
Yup. And Tajiks are dying in the war, too.
https://www.rferl.org/a/tajiks-killed-fighting-ukraine/31767197.html
Also, Tashkent is in Uzbekistan, not Tajikistan.
The 37th MRB is quite a storied unit in Soviet history and whether the current unit is a Russian unit designation reconstituted for the war or an Uzbek unit under Russian command the fact remains that the unit is quite real and is not merely a thing of the past.
BTW, the 37th MRB was always an Uzbek unit.
Knowing that the unit is likely an Uzbek unit under Russian command makes the news of the commander’s murder less offensive than thinking it was a Russian who killed the man.