The Pentagon is developing a new nuclear strategy that would give the U.S. president more flexible tactical nuclear options to deter China and Russia, while critics warn that the move could lower the threshold for nuclear use.
The report places the review in a post-New START setting. On Feb. 5, 2026, the New Strategic Arms Reduction Treaty signed in 2010 expired without a replacement, bringing an end to the legal framework that had capped U.S. and Russian deployed strategic warheads at 1,550. That ceiling no longer carries legal force.
New START covered strategic arms, not tactical ones
The article notes that the treaty only applied to strategic nuclear weapons. Tactical nuclear weapons were never included, and that is the category where Russia is said to hold a clear numerical advantage. U.S. Strategic Command this year estimated that Russia has as many as 2,000 tactical nuclear warheads, none of them restricted by treaty limits.
Beyond the 1,550-warhead cap, New START also imposed two other limits: 700 deployed missiles and heavy bombers, and 800 deployed and non-deployed launchers. Those three limits addressed strategic systems capable of city-level destruction. They did not address lower-yield tactical nuclear weapons intended for military formations, bases, or specific facilities.
According to the report, that arms-control design rested on the assumption that tactical nuclear weapons had a more limited destructive scope and were less likely to trigger uncontrolled escalation. The article argues that this assumption has come under strain as Washington relies on strategic deterrence while Moscow holds a large stockpile of unrestricted tactical warheads.
Pentagon review began in August 2026
The Pentagon launched a strategy review focused on tactical nuclear weapons in August 2026, the report says. The effort is being led by Under Secretary of Defense for Policy Elbridge Colby.
NBC News, citing five people familiar with the matter, reported that Colby would present details during a nonpublic military event while visiting U.S. Strategic Command in Nebraska. Strategic Command is the only U.S. combatant command responsible for overseeing the country’s nuclear forces.
The article says the choice of venue matters. Presenting the plan at Strategic Command rather than through a White House press conference or a public Pentagon briefing suggests the proposal has moved beyond an early trial balloon and is closer to an operational policy discussion.
Tactical nuclear weapons gain a larger role
The core of the review, according to the report, is to elevate tactical nuclear weapons to a status closer to that of long-range strategic strike capabilities.
Tactical nuclear weapons generally target theater- or regional-level military objectives such as formations, bases, or selected facilities. They are not primarily designed to destroy entire cities or wipe out an opponent’s full nuclear force. Their delivery systems also tend to have shorter range, fitting a point-strike role rather than a campaign of broad destruction.
The scenario behind the review is direct: if Beijing or Moscow were to take military action against a U.S. ally, Washington wants the ability to respond without moving immediately into full-scale nuclear war. The report says that reflects a wider shift in U.S. planning. For decades, the United States usually dealt with one principal nuclear rival at a time. Now it must account for both China and Russia at once, a condition the article describes as unusual in the post-Cold War era.
Backers say the White House needs credible choices
Officials who support the shift argue that the White House should have several executable response layers short of full nuclear war. In their view, deterrence is stronger if an adversary believes Washington has more than a binary choice between using strategic nuclear weapons or doing nothing.
A senior Pentagon official, speaking to NBC News, said Washington needs nuclear options that are real and believable to an opponent, not options that exist only on paper. The Pentagon’s stated objective, as presented in the article, is to expand the president’s decision space with practical and credible options and in that way strengthen deterrence.
In the article’s framing, the review would broaden the range of choices available to President Donald Trump as well as future presidents, making tactical nuclear use part of a wider ladder of options rather than a single all-or-nothing decision.
Critics warn the psychological barrier could fall
Opponents challenged that logic immediately. They argue that once the barrier to contemplating tactical nuclear use is lowered, the buffer between diplomacy and force shrinks with it. A weapon category that once sat behind multiple levels of escalation could enter the decision process much earlier, even during a regional clash that might otherwise have remained containable.
The article also stresses that the word “tactical” does not erase the consequences of nuclear use. Casualties, radioactive fallout, and retaliatory chains would not disappear simply because a warhead has a smaller yield or a shorter delivery range.
After treaty expiry, restraint rests on informal understandings
Axios reported in February that the United States and Russia came close to an understanding under which both sides would continue to observe New START limits informally after the treaty’s expiration, but no legally binding result was reached.
That leaves the current balance in a fragile state. Since Feb. 5, 2026, the report says strategic arsenals have remained roughly near prior treaty levels not because of verification or enforceable rules, but because of mutual restraint and informal understanding. Either side could decide to move beyond those limits without violating any active treaty, because the treaty is gone. If tactical nuclear loosening advances at the same time, the article argues, it would add a new layer of flexibility in an environment already defined by a lack of formal arms control.
The report ends by pointing to three questions: how far the White House will go in adopting the review, whether Russia and China will answer with expanded tactical nuclear deployments, and whether the shift could speed up a new arms race outside any treaty structure.