The infield is a square (usually called a "diamond"), with each side being long. In each corner of the square, there is a "base", which is a square with sides of . One of the bases is called home base or home plate, and the sides of the square that touch home plate are extended beyond the two nearest bases until the outfield fence (which is or more away from home plate) to form the foul lines. Most of what happens in a baseball game happens in the area of the field in between the foul lines and the outfield fence, which is called fair territory. All other areas of the field (except the foul lines) are called foul territory.