Logistics is an industry that is centered around the movement of products in a company’s supply chain. Unlike the transportation industry, logistics is a more specific term. It includes every aspect of meeting a market segment’s demand, beginning with the acquisition of goods and products and ending with customer delivery. In order to be classified as international logistics, the goods must cross at least one international border. There are over 126 major ports around the globe that handle the movement of products. The world’s busiest ports are commonly determined using metrics such as load weight and container volume. Shipments are referred to as TEUs which stands for Twenty-Foot Equivalent Unit. The terminology came about because one TEU is equal to a single shipping container that measures 20 feet in length by 8 feet in height. It has become standard practice to say TEU instead of container. The total number of TEUs that passes through a port each year is how they are ranked.