The term 'military uniform' can refer to a variety of different clothing items worn by members of the armed forces. Two of the most common items are KHAKIS and KHAKI, which both have 6 and 5 letters respectively. KHAKIS are usually a light tan color and are made of cotton or a cotton blend. They are typically worn with a shirt and tie, and are often seen in the military as part of a dress uniform. KHAKI is a darker shade of KHAKI and is usually made of a heavier fabric such as wool or polyester. It is often used for more casual uniforms, such as those worn by soldiers in the field.