What methods did the incas use to unify their large empire?

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The Inca road system symbolized the power of the Incan State, some roads led to Cuzco, and all together the roads where 14,000 miles long. They also controlled the economic activity regulating the production and distribution of goods.

Explanation:

a case involving the laws of a single state.

lend lease program was passed by congress on march 11, 1941. the president could ship weapons, food, or stuff to any country whose struggle against the axis assisted u.s. defense