Army uniform lanyards serve several practical purposes within the military. They are often worn as a part of a soldier's uniform and can vary in color, design, and function depending on the specific branch of the military and the individual's rank or role. Here are some common types of lanyards used in the military:

Identification Lanyards: These are typically worn around the neck and hold a soldier's ID card or other important credentials. They are usually plain and may have a breakaway feature for safety.

Whistle Lanyards: In some situations, especially in training or field exercises, soldiers may use lanyards to hold whistles for signaling or communication.

Rank Lanyards: Some militaries use lanyards as a way to display a soldier's rank. These may have different colors or designs to signify different ranks or branches.

Unit Insignia Lanyards: These lanyards can be customized to represent specific units or divisions within the military. They might incorporate the unit's colors or insignia.

Functional Lanyards: These are designed with a specific function in mind, such as carrying a compass, flashlight, or other small tool that a soldier might need quick access to.

Parade Lanyards: For ceremonial occasions, lanyards may be used to secure ceremonial weapons, flags, or other items.

Safety Lanyards: In certain situations, such as during parachute jumps or rappelling, specialized lanyards are used to secure equipment or personnel.

It's important to note that the specific types of lanyards and their regulations can vary widely depending on the country and the branch of the military. Additionally, the design and regulations for lanyards may change over time, so it's always best to refer to official military guidelines for the most up-to-date information.