Mountain ranges are really important when it comes to setting the borders between countries and building friendships or alliances. Here’s how they do it:

• Clear Boundaries: Mountains create obvious physical lines that show where one country stops and another starts.
• Safety: Countries might become friends to protect each other from dangers, especially when there are mountain paths that could be used by threats.
• Different Cultures: Mountains can separate people, leading to unique cultural identities. This means that communities on either side may develop in their own special ways, which can affect how these places get along with each other.

So, mountains are more than just big hills; they play a big role in how countries are set up and how they interact with one another.