What is any object or obstacle that creates a bullet-resistant barrier between you and a threat?

The term that refers to any object or obstacle creating a bullet-resistant barrier between a person and a threat is "cover." In the context of firearms and personal defense, cover is vital because it provides protection against incoming fire, allowing an individual to shield themselves from potential danger.

Cover can include various materials such as walls, vehicles, or any substantial objects that can stop or deflect bullets, thereby reducing the risk of being hit. Understanding the concept of cover is crucial for anyone who is trained in firearm use and safety, as it emphasizes the importance of positioning oneself strategically during an encounter with a threat.

In contrast, while a shield can provide protection, it is typically a portable piece of equipment carried by a person, rather than an environmental object or obstacle. Armor refers to protective clothing or gear worn to shield the body from projectiles. Defense is a broader term encompassing various methods and strategies for protecting oneself, but it does not specifically denote a physical barrier as cover does.