Dog Tag, also known as a military identification tag, is usually made of metal and is rectangular in shape, with personal identification information engraved on it, such as name, blood type, etc., to identify soldiers. Every American soldier will wear a dog tag on his chest. This is a must-have configuration for active service in the U.S. military. Because it is similar to the ID tag worn by a puppy, Western countries are used to calling it a "dog tag", without any derogatory or insulting meaning. meaning. Today, dog tags are also a fashion accessory, worn by many as a personalized necklace that carries memories and remembrances while demonstrating respect and respect for military culture.