what is one way the inca unified their empire

One way the Inca unified their empire was through the construction of an extensive road network known as the Inca Road system. This network of roads connected the various regions of the empire, allowing for communication, trade, and military movements to occur efficiently and effectively. The roads facilitated the movement of goods, troops, and information across the vast expanse of the empire, helping to solidify the control of the Inca rulers over their territory.