Close-quarters combat is when people fight up close, like when they don't have enough space to use big weapons or run away. It's like playing a game of tag, but instead of just tagging someone, you need to defend yourself and maybe even hurt the other person to stay safe.
In close-quarters combat, you use your body, fists, feet, and sometimes a small weapon to defend yourself and attack the other person. You need to be really quick and agile to dodge their attacks and find an opening to hit them back.
It's important to learn close-quarters combat if you're a soldier, police officer, or someone who could find yourself in danger. You need to know how to protect yourself and others in close spaces, like a narrow alley or a small room.
But remember, fighting is never the first option. It's always better to try and talk things out or get help from others if you feel unsafe.