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The President’s Sole Authority for First Use

Note to readers: Because of its renewed relevance, I have updated a post that appeared in ACW under the heading “A Three Person Rule for Nuclear First Use” on April 17, 2017. A shorter version of this essay was published in the New York Times on April 13, 2017.

Quote of the week:

“Ours is a world of nuclear giants and ethical infants…  We have grasped the mystery of the atom and rejected the Sermon on the Mount.”
― General Omar N. Bradley

The President of the United States has unrestricted powers to use
nuclear weapons first if he or she deems this necessary. Concerns about the absence of checks and balances on the first use of nuclear weapons have spiked because of Donald Trump’s bellicose temperament and shallow understanding of nuclear flash points. They have been exacerbated by his erratic behavior and remarks while recovering from the COVID virus.

What to do? Some on Capitol Hill have introduced legislation that would prohibit the president from launching a nuclear first strike without a declaration of war by the Congress. In my view, this is the wrong remedy. Instead, I propose a three person rule for crossing the nuclear threshold first that can be enacted by executive order and reaffirmed by the Congress.

To require a declaration of war by the Congress before nuclear first use would be most unwise. Part of the problem lies in the history of tussles between the executive and legislative branches over war powers. No president in the modern era has accepted the absolute requirement of congressional consent on war-making powers. Declarations of war have been extremely rare – against Great Britain in 1812, Mexico in 1846, Spain in 1898, Germany and Austria-Hungary in 1917, and Japan, Germany, and their allies in 1941-2. None of the wars that have been fought in the past eight decades – large (Korea, Vietnam, Afghanistan, Iraq) or small – have been preceded by a declaration of war.

A more significant problem is one of time urgency. Any scenario in which an American President contemplates the first use of nuclear weapons against a nuclear-armed foe implies a situation or a sense that time is running out. The deeper the crisis, the more both sides will increase readiness to use nuclear weapons. These steps could be taken for deterrence purposes, but they would be hard or impossible to distinguish from readiness to use nuclear weapons first. (This scenario applies to the subcontinent as well as to the Korean Peninsula.)

Now overlay onto this scenario the pursuit of a declaration of war by the Congress. Rather than buying time against first use, the prospect of a vote on Capitol Hill could instead compress decision-making time in a crisis – if an adversary concludes that a congressional resolution is a prelude to military action.

In rare cases when the executive branch has sought support for war-making powers, Congress has seen fit to provide backing. A congressional vote ‘yea’ connotes toughness and steely resolve, while a ‘nay’ vote undercuts an administration and could embolden a bad actor. This is how the Congress authorized open ended war-making powers — but not a declaration of war — to the George W. Bush Administration after the attacks on 9/11.

For these and other reasons, a declaration of war prior to the first use of nuclear weapons by the United States does not pass the “do no harm” test. A far more realistic check on the first use of nuclear weapons by the United States can be found, oddly enough, in the case of a Soviet diesel submarine that was depth-charged to the surface during the most harrowing days of the Cuban missile crisis in 1962.

Back then, diesel submarines had limited capabilities to remain submerged and to “phone home.” So the captain, second captain and deputy political officer on the B-59, a Foxtrot-class submarine, observed a compact in the event that they were unable to receive instructions from Moscow authorizing the use of a nuclear-armed torpedo on board. They agreed that to fire the torpedo against a surface ship, their vote had to be unanimous; if not, they would hold their fire.

The United States Navy was unaware that Soviet submarines carried nuclear-armed torpedoes, just as the Pentagon and the American intelligence community, while planning pre-emptive strikes, were unaware that nuclear weapons had already been deployed on Cuban soil. The job of enforcing President John Kennedy’s naval quarantine of Cuba fell to the chief of naval operations, Adm. George Anderson. He, like the Air Force Chief, Gen. Curtis LeMay, wished to strike first, rather than seek a diplomatic settlement, which they perceived to be a riskier option.

Everyone knows that the Cuban missile crisis was a close call, but too few of us know just how close the two superpowers actually came to nuclear war. Only later, when American and Soviet veterans of the crisis met to swap reminiscences, did the world learn that on Oct. 27, 1962 — the same day that an American U-2 spy plane was shot down over Cuba — the three Soviet officers on board the B-59 cast the most important vote in the history of Western civilization.

While being depth-charged to the surface, the submarine’s captain and the political officer voted to fire their torpedo. The third officer, Second Captain Vasili A. Arkhipov, voted nyet.

This cautionary tale teaches many lessons. What a president knows, or thinks he or she knows, in a severe crisis can be less important than what he or she doesn’t know. Hasty decision making can have catastrophic consequences, while diplomacy can be a far safer course than pre-emptive strikes.

Having just one “decider” when it comes to first use is unsound and unwise because that decision maker can have faulty information and poor judgment. The choice to use nuclear weapons in war for the first time since 1945 is too consequential to rest on the shoulders and mind of just one person. A three-person consensus rule for the first use of nuclear weapons worked on the B-59. It can work for the United States as well.

Who should the president be obliged to consult and receive approval from before making this profound choice? These individuals must be quickly accessible. They should be civilians who have the confidence of both the President and the Congress — meaning that they should be subject to Senate confirmation.

The most obvious choices would be the Secretaries of State and Defense. The president should, of course, also consult with the Vice President and the National Security Adviser, as well as with Congressional leaders, but formalities matter on a judgment of this magnitude. A three person rule for nuclear first use ought to be codified in an executive order and Public Law.

Requiring the consent of the Secretaries of State and Defense for the first use of nuclear weapons could increase the odds against the rashest action that could ever be taken by an American president.

Michael Krepon

Writing on ACW 2009–2022

Michael Krepon is the co-founder of the Stimson Center and the author of Winning and Losing the Nuclear Peace: The Rise, Demise, and Revival of Arms Control. He was given a lifetime achievement award for non-governmental work to reduce nuclear dangers by the Carnegie Endowment for International Peace in 2015. He has worked in the executive and legislative branches of the U.S. Government, and taught as a professor of practice at the University of Virginia.

All posts by Michael Krepon