inca empire
Army
To build their great empire, the Incas created a powerful army formed by the warriors of the tribes they conquered
Political organization
The leader of this Empire was the Sapa Inca, who administered justice throughout the day in the seat of his palace
Chasquis
They developed a very fast service of messengers or chasquis who carried the communications
Mitmaj
a system of forcible transfer of entire communities from one part of the empire to another
transportation
The Incas were great road builders, one of which is the Qhapaq Ñam or Camino Real, of 5,200 km