Foreign policy is important because it determines the state of relationships between countries and guides the diplomats in negotiations. If a country is too aggressive and refuses to take into the legitimate interests of other countries, it may face a push back or even an armed conflict.
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The answer to this problem is C
<span>It is all about decentralization.and networks. By having a vast network of roads Darius could could project his power using satraps, or local governors, thoughout his kingdom.</span>