Infantry are basic, well-rounded ground troops that are though in battle they are like modern legandaries they are strong loyal and fearless and disaplaned soldiers. Infantrymen are soldiers who are specifically trained for the role of fighting on foot to engage the enemy face to face and have historically borne the brunt of the casualties of combat in wars. As the oldest branch of combat arms they are the backbone of armies. Infantry units have more physically demanding training than other branches of armies, and place a greater emphasis on discipline, fitness, physical strength and aggression. The Infantryman himself is the weapon system. Infantrymen are distinguished from soldiers trained to fight on horseback (cavalry) in tanks, or in technical roles such as armourers but rudimentary infantry skills are fundamental to the training of every soldier, and soldiers of any branch of an army are expected to serve as auxiliary infantry (e.g. patrolling and security) when necessary. Infantry can access and maneuver in terrain inaccessible vehicles and tanks, and employ that can provide Infantry support weapons firepower in the absence of artillery Attack operations are the most basic role of the infantry, and along with defense, form the main stances of the infantry on the battlefield. Traditionally, in an open battle, or meeting engagments two armies would maneuver to contact, at which point they would form up their infantry and other units opposite each other. Then one or both would advance and attempt to defeat the enemy force. The goal of an attack remains the same: to advance into an enemy-held objective and dislodge the enemy, thereby establishing control of the objective. Attacks are often feared by the infantry conducting them because of the high number of casualties suffered while advancing to close with and destroy the enemy while under enemy fire. In mechinized Infantry the armored personnel carrier (APC) is considered the assaulting position. These APC's can deliver infantrymen through the front lines to the battle and contribute heavy firepower to engage the enemy. Successful attacks rely on sufficient force, preparative.