If the Hudabia peace treaty is analysed critically, the concept of borders clearly emerges.
The 2nd Caliph Omar Khattab, desired a wall between his state and Iran, so that no one could cross it. He wanted to avoid war, later he had to go for it.Normal friendly relations with peaceful non Muslims are allowed by Quran.
http://en.wikipedia.org/wiki/Treaty_of_Hudaybiyyah
http://en.wikipedia.org/wiki/Pan-Islamism
http://quran-pedia.blogspot.com/2013/11/muslim-non-muslim-relations.html
http://en.wikipedia.org/wiki/Pan-Islamism
http://quran-pedia.blogspot.com/2013/11/muslim-non-muslim-relations.html
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