Competition between european countries such as portugal and spain affect overseas exploration and expansion, they didn´t want to go to America, they both wanted to go to Asia, and Africa, trade with asia, get their riches, improve technology and covert people to Christian. Christopher Columbus wanted to go to Asia when he found america, as a result of all that competition, spanish and portuguese established colonies in america.

So an iron triangle comprises or makes the base of the policy making relation over or among the congressional committees,the bureaucracy, etc.
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One of the most dramatic changes in government in Iran's history was seen with the 1979 Iranian Revolution<span> where </span>Shah Mohammad Reza Pahlavi<span>was overthrown and replaced by </span>Ayatollah Ruhollah Khomeini<span>. Autocratic monarchy was replaced by an </span>Islamic Republic<span> based on the principle of rule by Islamic jurists, (or "</span>Velayat-e faqih<span>"), where clerics serve as </span>head of state<span> and in many powerful governmental roles. A pro-</span>Western, pro-American<span> foreign policy was exchanged for one of "neither east nor west", said to rest on the three "pillars" of mandatory veil (</span>hijab<span>) for women, and opposition to the </span>United States<span> and </span>Israel.[1]<span> A rapidly modernizing, capitalist economy</span>[2][3]<span> was replaced by </span>populist<span> and </span>Islamic<span> economic and culture.</span>
In philosophy, economics, and political science, the common good (also commonwealth or common weal) is a term of art, referring to either what is shared and beneficial for all or most members of a given community, or alternatively, what is achieved by citizenship, collective action, and active participation in the realm of politics and public service.
They were standard routes from one monastery to another. They were like routes for trading and travel.