All nations will become one in faith !

"We desire but the good of the world and the happiness of the nations; that all nations shall become one in faith (Baha'i) and all men as brothers; that the bonds of affection and unity between the sons of men shall be strengthened, that diversity of religion shall cease and differences of race be annulled. So it shall be; these fruitless strifes; these ruinous wars shall pass away, and the 'Most Great Peace' (Establishment of a Baha'i Superstate) shall come."

— Baha'u'llah

https://bahai.works/Star_of_the_West/Volume_8/Issue_19