Wedge Formation Military. It had soldiers lining up in the shape of a pointy triangle and charging directly at and through the enemy. This is an offensive formation used for splitting up mob elements, and advancing and clearing streets.
Web an episode in caesar's 'gallic war' mentions the wedge formation, and the context is perhaps quite informative. The wedge formation is perhaps on of the first battle formations implemented in warfare. Web part of a series of short instructional videos on squad and team tactics for milsim players without previous military experience.