1.I hope someone can provide a learned explanation to a nagging confusion I have been carrying in my mind for some time. "Islam" is well understood. Its jurisprudence, laws, ethics, commerce, social and cultural aspect - in fact, all facets are understood by the Muslims in general. Whether these are followed or not is another matter. From the governance of Mecca-Madina to the territorial expansions and ethnic amalgamations of around first six centuries, Muslims were subject to the teachings of The Holy Quo'ran and the Sunnah. Then the deterioration set in.
2. "Republic" is a Western/Christian concept which go back to Aristotle-Plato and even Socrates who questioned everything. This concept traveled down centuries colored by various Western cultures, Christianity and the Western thinkers like Hobbs, Locke, Russo, Machiavelli, Engels, Marx, John Adams and so on.
3. The emergence of the term "Islamic Republic" began in Pakistan under Field Marshal Ayub Khan. It is now used also by the Maldives, Iran and few others. However, Afghanistan, Libya and most Muslim nations have not adopted this.
4. My confusion is regarding the fusion of two opposite ideologies. The West and Islam are totally different in matters of culture, values, concept of morality, concept of ethics, and even very basic political ideas. For instance it is Allah SWT for whose pleasure Muslims exist and to whom is bestowed all sovereignty. But in the Western Republic sovereignty lies with the people. They decide what is ethics, what is morality, etc. For instance, homosexuality and gay marriages are legal in the West.
5. Can anyone dwell on the subject and remove my confusion?