" Each dismounted fighter and each vehicle commander need only remember five basic rules. These rules define how the group fights at every scale (the individual, the dismounted squad, the vehicle, and the group of vehicles) and they never change, regardless of the terrain, the tactical situation, or the size of the engagement. They are: “Maintain an extended line abreast,” “Keep your neighbors just in sight, but no closer,” “Move to the sound of the guns,” “Dismount when you see the enemy,” and “When you come under fire, stop and fire back.” This "

― David Kilcullen , Out of the Mountains: The Coming Age of the Urban Guerrilla