In 2015, West African countries fought against the jihadist militant group Boko Haram which controlled large areas of northeastern Nigeria.

The group, whose name means 'western education is forbidden', had killed thousands and displaced millions in the years preceding 2015.

They made worldwide headlines in 2014 when they kidnapped 276 girls from a boarding school.

Tim O’Callaghan speaks to retired Brigadier General Sani Kukasheka Usman, who was director of public relations for the Nigerian army in 2015.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Nigerian soldiers hold a Boko Haram flag after liberating an area from their control in 2015. Credit: Reuters)

Following the Beatles' final concert tour, George Harrison travelled to India in 1967 to learn sitar under the renowned musician Ravi Shankar. Fleeing Beatlemania he travelled in disguise to Mumbai and then to Srinagar in Kashmir. Listening to BBC archive and using excerpts from a Martin Scorsese documentary, we hear one of the world's most famous guitarists challenge himself to learn a new instrument. The moment influenced George’s spirituality and his burgeoning solo musical career, as well as the Beatles'. It also propelled Ravi Shankar further into the limelight. The musicians remained lifelong friends. Ravi says they last saw each other on 28 November 2001, the day before George died. Produced and presented by Surya Elango.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there.

For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher.

You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: George Harrison and Ravi Shankar in 1975. Credit: by Michael Ochs Archives/Getty Images)

In 1946, an Indian woman made history by leading her country’s first delegation to the United Nations.

Vijaya Lakshmi Pandit described it as a moment that reshaped her life.

As the sister of Jawaharlal Nehru, India’s first prime minister, she was already in the public eye, but stepping onto the global stage was far from easy. She grappled with doubt before accepting the role at the United Nations.

This programme is made in collaboration with BBC Archives. Produced and presented by Gill Kearsley.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.

(Photo: Vijaya Lakshmi Pandit speaking at the United Nations. Credit: Keystone/Hulton Archive/Getty Images)