The Semitic religions (Judaism, Christianity and Islam) have divided the entire world into "believers" and "non-believers". According to their so-called holy books, the "paagans" or "kafirs" or even "atheists" have no right to live on planet earth. They should either be converted by any means or if that is not possible, then eliminated. So long as the followers of Semitic religion harbour such feelings for those who are outside their narrow circle, peace cannot prevail on planet earth.
All religions are a bundle of lies and have outlived their utility. Life on earth in the only thing known to mankind. Enjoy that to the fullest extent possible without harming others for getting rewards in an imaginary life here-after.