красногвардейского

красногвардейского

"Of or relating to the Red Guards."

Here, 'красногвардейского' is used as part of a proper noun, referring to a district named after the 'red guards'.

Он жил в Красногвардейском районе города.

He lived in the Krasnogvardeisky district of the city.

In this case, 'красногвардейского' describes the movement, indicating its association with the Red Guards.

В музее была выставка о красногвардейском движении.

In the museum, there was an exhibition about the Red Guards movement.

Here, 'красногвардейского' is used to characterize the unit as being a part of the Red Guards.

Его дед служил в красногвардейском отряде в начале прошлого века.

His grandfather served in a Red Guards unit at the beginning of the last century.