What is an artificial wall or embankment used in warfare as defence against tanks?

An artificial wall or embankment used in warfare as a defense against tanks is known as a "tank berm" or "anti-tank ditch." These structures are designed to obstruct the movement of armored vehicles, making it difficult for tanks to advance. They can be created using earth, concrete, or other materials and are often strategically placed to enhance defensive positions on the battlefield. By impeding tank mobility, these barriers aim to protect infantry and other assets from armored assaults.