TBD = to be determined
[da] = Deliberate attack
[dd] = Deliberate defense
[s] = Supporting attack (attack without advance)
M= Movement to contact / meeting engagement
* = Defender also attacking the attacker
(t) = Training exercise
(sub-unit / sub-unit, parent-unit)
    ex.(1SQ, 11ACR) or (20GTD / 18GRB, 6GTC)

GTC = Guards Tank Corp (USSR)
GMRC = Guards Motorized Rifle Corp (USSR)
    GTD = Guards Tank Division (USSR)
    GMRD = Guards Motorized Rifle Division (USSR)
    GRB = Guards Recon Battalion (USSR)
TC = Tank Corp (USSR)
MRC = Motorized Rifle Corp (USSR)
    TD = Tank Division (USSR)
    MRD = Motorized Rifle Division (USSR)
    RB = Recon Battalion (USSR)
DC = District Corp
    TD = Tank Division (DDR)
    MRD = Motorized Rifle Division (DDR)