square formation (infantry square, hollow square)

(фр. іст.) каре́ (бойовий порядок піхоти у вигляді квадрата)

vee formation / V-Formation / V Formation

fingertip formation / finger-four formation / four finger formation

armoured infantry (амер. armored infantry)

counter-hollow charge projectile protective screen

hollow charge antitank hand grenade

hollow charge projectile

hollow(-cone) charge

hollow cone charge

hollow-base bullet

hollow-charge ammunition

hollow-charge shell

hollow-point bullet

hollow-pointed bullet

hollow-stern valve

jacketed hollow-point bullet

hollow shaft (of lower coaxial shaft)

hollow-point bullet (HP)

square identification

trunnion square