It is, but countrywide peace, nevermind world peace, will never happen till the second coming of Christ or end of the world. There is a scripture in the Book of Mormon, Ether 12:4 which says we hope for a better world.
https://www.lds.org/scriptures/bofm/ether/12.27
That is a sad thought that yes we do hope for a better world but what are we really doing to make it better? not much.