John McCain: “We can't let Afghanistan become a sanctuary for al-Qaeda or ISIS.”

does flying Presidential protection missions increase readiness for the high-end fight?

As we turn our focus to great power competition and near-peer threats, we must face up to the true nature of the reality of Chinese power and ambition.

The president should not have this meeting with Vladimir Putin.

The National Defense Strategy offers a new framework for thinking about the global challenges we face and that places China squarely at the top of our priority list.