Air Force Secretary Deborah Lee James

The US Air Force on Friday unveiled the first image of its next-generation bomber that will replace antique B-52s first developed during the Cold War.

The air campaign against the Islamic State group has made progress in degrading the terrorist organisation but will not be enough without local boots on the ground, the US air force secretary said today.

The US Air Force on Friday unveiled the first image of its next-generation bomber that will replace antique B-52s first developed during the Cold War.

The air campaign against the Islamic State group has made progress in degrading the terrorist organisation but will not be enough without local boots on the ground, the US air force secretary said today.