The singer left his pop career behind after conversion but began recording again recently, including a new version of Peace Train for a charity album.

BBC: NEWS | Entertainment | Cat Stevens plays live concert

But at one time or another, we have all been left behind while the one we love has gone off to train for battle, or keep the peace, or wage war.

NPR: Waiting and Dreading: Families in War Time

Specifically, because we know the importance of peace in Darfur I am announcing today more help from Britain to train, equip and deploy African troops for the joint UN-African Union peacekeeping operation.

BBC: In full: Brown security statement