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