Which countries did tribes come from?

Tribes have originated from various countries around the world, each with distinct cultures and histories. For example, Native American tribes such as the Navajo and Sioux are indigenous to the United States, while the Maasai are from Kenya and Tanzania. In Europe, tribes like the Celts and the Goths historically inhabited regions that now comprise several modern countries. Similarly, tribes in Asia, such as the Mongols, have roots in Mongolia and surrounding areas.