A more thorough explanation:

Definition: Territorial is an adjective that describes something related to a specific geographic area.

Examples:

• A territorial dispute between two neighboring countries.
• The territorial boundaries of a national park.
• A territorial animal that marks its territory to protect it from others.

The examples illustrate how the term "territorial" is used to describe things that are related to a specific geographic area. In the first example, the dispute is related to a specific territory that both countries claim. In the second example, the boundaries of the national park define its territory. In the third example, the animal is protecting its territory from other animals that may try to invade it.