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
Time and a Word Maker" noting that despite the amplification problems, the "musical break-through" reaction from the audience suggested to him that the group had "arrived". The shows were the last in which Yes performed with an orchestra, until the 2001 Symphonic Tour to support their nineteenth studio album "Magnification", which also featured orchestral arrangements. Tensions within the band increased, and just after the album's recording was completed in early 1970, Banks was asked to leave. Steve Howe would join the line-up, as a replacement, that June. Following the UK release of "Time and a Word" in July 1970, the album became the group's