[9] On 2 October 2024, Lieutenant Colonel Ihor Hryb, the commander of the brigade's 186th Battalion died near Vuhledar.

Several Ukrainian journalists claimed that the commander committed suicide after the battalion refused orders and left their positions near Vuhledar without permission.

[12] On 4 October, about a hundred soldiers of the 187th Battalion of the 123rd Brigade held a rally in Voznesensk, Mykolaiv region.

The soldiers were protesting to draw attention to the lack of training and weapons to participate in combat operations in the Donetsk sector.

In Cossack times, this image was used as a seal for the Buhohardivska Palanka [uk], a territorial district within the organization of Nova Sich, which is today in the Mykolaiv Oblast.