New START Data Shows Russian Increases and US Decreases

By Hans M. Kristensen

[Updated April 3, 2016] Russia continues to increase the number of strategic warheads it deploys on its ballistic missiles counted under the New START Treaty, according to the latest aggregate data released by the US State Department.

The data shows that Russia now has almost 200 strategic warheads more deployed than when the New START treaty entered into force in 2011. Compared with the previous count in September 2015, Russia added 87 warheads, and will have to offload 185 warheads before the treaty enters into effect in 2018.

The United States, in contrast, has continued to decrease its deployed warheads and the data shows that the United States currently is counted with 1,481 deployed strategic warheads – 69 warheads below the treaty limit.

The Russian increase is probably mainly caused by the addition of the third Borei-class ballistic missile submarine to the fleet. Other fluctuations in forces affect the count as well. But Russia is nonetheless expected to reach the treaty limit by 2018.


The Russian increase of aggregate warhead numbers is not because of a “build-up” of its strategic forces, as the Washington Times recently reported, or because Russia is “doubling their warhead output,” as an unnamed US official told the paper. Instead, the temporary increase in counted warheads is caused by fluctuations is the force level caused by Russia’s modernization program that is retiring Soviet-era weapons and replacing some of them with new types.

Strategic Launchers

The aggregate data also shows that Russia is now counted as deploying exactly the same number of strategic launchers as when the New START Treaty entered into force in 2011: 521.

But Russia has far fewer deployed strategic launchers than the United States (a difference of 220 launchers) and has been well below the treaty limit since before the treaty was signed. The United States still has to dismantle 41 launchers to reach the treaty limit of 700 deployed strategic launchers.

The United States is counted as having 21 launchers fewer than in September 2015. That reduction involves emptying of some of the ICBM silos (they plan to empty 50) and denuclearizing a few excess B-52 bombers. The navy has also started reducing launchers on each Trident submarine from 24 missile tubes to 20 tubes. Overall, the United States has reduced its strategic launchers by 141 since 2011, until now mainly by eliminating so-called “phantom” launchers – that is, aircraft that were not actually used for nuclear missions anymore but had equipment onboard that made them accountable.

Again, the United States had many more launchers than Russia when the treaty was signed so it has to reduce more than Russia.

New START Counts Only Fraction of Arsenals

Overall, the New START numbers only count a fraction of the total nuclear warheads that Russia and the United States have in their arsenals. The treaty does not count weapons at bomber bases or central storage, additional ICBM and submarine warheads in storage, or non-strategic nuclear warheads.

Our latest count is that Russia has about 7,300 warheads, of which nearly 4,500 are for strategic and tactical forces. The United States has about 6,970 warheads, of which 4,670 are for strategic and tactical forces.

See here for our latest estimates:

See analysis of previous New START data:

The research for this publication was made possible by a grant from the New Land Foundation, and Ploughshares Fund. The statements made and views expressed are solely the responsibility of the author.

6 thoughts on “New START Data Shows Russian Increases and US Decreases

  1. It should be “Russia increased its number of deployed strategic WARHEADS by 87”.

    More importantly, US total launcher count is 878, 20 fewer than in September 2015. What are these 20 eliminated launchers?

    1. Thanks for catching it, Pavel. Wrong column number. As I mention elsewhere, the count has Russia with the exact same number of deployed launches as the very first count in 2011. But of course, since Russia has been far below the launcher limit for years, they are not required to reduce launchers.

      On the reduction in US launchers, that concerns emptying of some of the ICBM silos (they plan to empty 50) and denuclearization of a few excess B-52 bombers. There is probably also an effect from reducing launchers on each Trident submarine, which are currently being reduced from 24 missile tubes to 20 tubes. I have added this info to the updated blog.

  2. Thanks for the report. I watch a lot of Russian television and hardly a week goes by without a report dealing with a new nuclear weapon delivery system. While I’m sure many of these reports are merely attempts by the Kremlin to assure the audience that the country is well protected (and they shouldn’t be complaining about poor roads, health care, employment, etc…), is anybody in the US keeping track of these new developments? There may not be a “missile gap” but one might deduce that Russia has gained the upper hand in mobile delivery systems.

    1. Russia has always has an “upper hand” in mobile ICBMs compared with the United States because of the simple fact that the United States so far has not seen a need to deploy mobile ICBMs. The US military assessment is that the US nuclear arsenal is very robust and capable and that there is no realistic act, even a break-out scenario from the New START Treaty with Russia deploying significantly more warheads than the United States, that would give Russia a military advantage. For a description of this issue, see:

      The finer point here is that strategic stability is not a “NASCAR” speed comparison but a cool-headed assessment of the military capabilities.

    1. Actually, most of Russia’s ICBMs are still single-warhead missiles: about 140 of their ICBMs (~45 percent). This ratio is changing as the remaining single-warhead SS-25s are replaced with MIRV’ed SS-27 Mod 2 (RS-24, Yars).
      For our latest overview of Russian nuclear forces, see

      The reason Russia has fewer launchers is not about MIRV but because Russia under the old START agreement, as well as under its national weapons modernization program, retired more launchers than it replaced during the 1990s and early-2000s.

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