From a national security perspective there is a sound argument to be made that the United States is as secure today as any time in our national history. We are the wealthiest nation in the history of mankind. Our 320 million citizens have immense opportunity and are protected by the rule of law. Our 2.1 million men and women of the Active, Guard, and Reserve Armed Forces have no peer group competitor. In particular– our Naval and Air Power is capable of deterring any reasonable threat to our vital interests.
The challenges from North Korea, Iran (pending), Russia, and China as nuclear powers are real. The proliferation of Weapons of Mass Destruction is the principle threat to international security. There is no longer a global commitment to controlling nuclear weapons thru international agreements and law. At some point these fearsome weapons will be used in conflict if we cannot reengage in active safeguards and limitations and confidence building measures.
Finally, I would suggest that the greatest current threat we face is the Trump Administration’s disparagement of our allies and the declining trust we see in a world that fears American isolationism and a senseless America First political culture. Our safety is ensured not just by US power but by the faith and trust of NATO partners, South Korea, Japan, Australia, and others.