Arslan said:
1. You keep saying "civil war" for TW. I wonder, in what historical sources are found the hints of a civil war?
Trojan war isn't history, it is mythology. That's where most of the pitfalls start. Of course, as is the case with most myths, there must have been some kind of war that triggered the myth - but you can't count on Homer to define history. The important difference is the following:
Did Homer's war was described "as it happened", or did he try to make a story tailor-made to his time? Whether the real Trojans were or weren't Greeks, did Homer describe them as non-Greeks?
But for more understanding about the case of civil war, you must first and foremost understand how ancient Greeks distinguished themselves from the barbarians, so it will be clearer after your second question.
Arslan said:
2. You also mentioned the Greekness of Trojans. In what sources Greekness of Trojans are emphasized without dispute? Today, even the Greekness of Macedonians is controversial.
I don't want to enter into debates about "Greekness" of anything, especially when based on (more than controversial) current "translations" of our understanding towards an era of 3000 years ago. Let's keep some facts first:
1. Troy was built near the Aegean sea, and it is very well proved that these areas were inhabited and/or colonized by Greeks (at least at the time Homer wrote his myths).
2. Greeks called all non-Greeks as Barbarians - you can't find such a characterism for Trojans, which distinguishes them very clearly.
3. It's clear that the myth is talking about a war between two extremely similar cultures, in any way we can define culture.
4. (this is a very critical point) The Greek gods were divided EQUALLY. That means, in any serious interpretation of myths, that here we have a war between people with exactly the same religion. Finding exactly the same religion between people of different nations was extremely rare at that time.
5. Troy wasn't mentioned first by Homer. The Hercules myths, that define the area where you can find "Greeks", include Troy. That means there must have been at least a Greek colony in that area.
But we mustn't forget that we are talking about a time when in mainland Greece there hasn't even happened the entrance of people (like Dorians) who we now define as Greeks. That makes the whole debate "Greeks - non-Greeks" very naive, since you must define many things beforehand, including whether you want to discuss about the Homeric myths or the real Troy. For example, why couldn't these people be some Mycenian colonists, blended of course with people from the area?
As for the "controversiality" for Macedonians, money can buy anything in our time but (fortunately) they haven't been able to alter completely both logic and history. Especially after the discoveries in Vergina.
Arslan said:
3. What do you think about the origin of Greeks? Where did they come from? When did the Greek language begin to be spoken in the east Mediterranean basin? How did they spread? This is important for this debate, some mention Anatolia for Greek origins.
This is, as I already said, the most difficult question since in what we call as "Greeks" you see a blend of far too many tribes, some earlier and some later than the period we discuss. That's why I don't enter into that topic - from that perspective it's clear that Athenians and Spartans couldn't both belong in the same nation (which is different from what they thought for themselves).
Logic dictates that there should have been blends of people in several time periods, including (of course) people from Anatolia. But I don't think that we can talk about Greek consciousness before the start of the Olympic games. As for the Greek language, that's the only area we know more things. Counting for the necessary and inavoidable evolution, we can still say that the language is spoken in this area for more than 3000 years. Even some earlier forms, which were thought to be a different language, were finally found to be just earlier forms of this language.