Abstract is: A military parade is a formation of soldiers whose movement is restricted by close-order manoeuvering known as drilling or marching. The military parade is now almost entirely ceremonial, though soldiers from time immemorial up until the late 19th century fought in formation. Massed parades may also hold a role for propaganda purposes, being used to exhibit the apparent military strength of a country.
Abstract is: A parade is a procession of people, usually organized along a street, often in costume, and often accompanied by marching bands, floats, or sometimes large balloons. Parades are held for a wide range of reasons, but are usually celebrations of some kind. In British English, the term 'parade' is usually reserved for either military parades or other occasions where participants march in formation; for celebratory occasions, the word procession is more usual. In the Canadian Forces, the term also has several less formal connotations. Protest demonstrations can also take the form of a parade, but such cases are usually referred to as a march instead.
Abstract is: Foot drill is a part of the training regimen of organized military and paramilitary elements worldwide. "Foot drill" or "Drill" stems from time since antiquity when soldiers would march into battle, be expected to gather in a formation, and react to words of command from their commanders once the battle commenced. Much of the drill done today is either ceremonial, or implemented as a core part of training in the armed forces. Military discipline is enhanced by drill, as it requires instant obedience to commands and synchronized completion of said commands with the others in the unit. Drill proved useful when marching formations of soldiers cross-country. For example, officers could form men from an eight-wide route march formation to a two-wide formation for passing through gates and other narrow passages, without losing time or cohesion. Drill was used to efficiently maneuver formations around and through obstacles. Drill was often used as a forerunner to great battles; during them it justified itself. It was also utilized after battles, where quick restoration of the corporate unity of an element was required.