Boko Haram insurgency insurgency spread to neighboring Cameroon, Chad, and Niger thus becoming a major regional conflict. In 2015, a coalition offensive forced Boko Haram to retreat into the Sambisa Forest. The insurgency took place within the context of long-standing issues of religious violence between Nigeria's Muslim and Christian communities. Boko Haram has been called the world's deadliest terrorist group, in terms of the number of people it has killed. Nigeria was amalgamated both the Northern and Southern protectorate in 1914, only about a decade after the defeat of the Sokoto Caliphate and other Islamic states by the British which were to constitute
Fallen Sanctuary the band a new direction for the album's name. "Fallen Sanctuary" was chosen, describing "the point or a statement the band was looking for." Track 11, "Journey's End", on the Limited Edition album, also appeared in its original state on the band's demo Engraved Within. The album produced the band's first single "Velatum." The word is appropriate for the single as it is the past participle of "velare," meaning to cover, wrap, hide, or conceal. The song itself refers to a hidden or concealed mystery of past lives. The LTD/Digipack version of "Fallen Sanctuary" also contains the band's first video