A nation that can't control its energy sources can't control its future.
For 50 years, the Republicans have been accusing the Democrats of being soft on national security.
Second, the facility at Guantanamo Bay is necessary to national security.
Britain has taken itself out as a major player in the international system, at least for a while, with the kind of cuts that they've made in their national security budget.
One of the sharp parallels is that neither Vietnam nor Iraq was the slightest threat to America's national security.