Approximately 300 million Eastern Christians world-wide have a rich - as well as challenging - history of engagements with believers of other faith traditions. The same Western countries that have experienced a significant rise in Eastern Christian populations during the last several decades have also been home to millions of non-Christians for centuries, or, in the case of indigenous faiths, for millennia. The need to explore and analyze particularities of the interaction between these traditions in pluralistic and multicultural Western environments is imperative.