Was reading this article yesterday
http://bahai-library.com/bsr/bsr09/9B3_lambden_armageddon.htm
In the
Advent of Divine Justice (1939) and at the beginning of
The Promised Day is Come (1941 and elsewhere, Shoghi Effendi cites various apocalyptic prophecies from miscellaneous tablets of Bahá'u'lláh;
The time for the destruction of the world and its people hath arrived
(hangám faná'-yi 'álam va ahl-i án rasíd amad).
The hour is approaching when the most great convulsion
(inqiláb-i akbar) will have appeared.
Soon will the present-day order be rolled up, and a new one spread out in its stead.
By Myself! The day is approaching when We will have rolled up the world and all that is therein, and spread out a new Order in its stead.
The day is approaching when its [civilisation's] flame
(nár) will devour the cities, when the tongue of Grandeur will proclaim: "The Kingdom is God's, the Almighty, the All-Praised
(al-mulk li-láhí al-azíz al-hamíd)."
Such passages could be greatly multiplied. Among other things, as we shall see, Bahá'ís believe that these texts prophesy the wars of the 20th century and beyond as well as possible apocalyptic upheavals.