The Russian Horn Prepares to Invade Europe

Russian troops near Ukraine in December. U.S. officials say Moscow’s window for an invasion is limited.
Russian troops near Ukraine in December. U.S. officials say Moscow’s window for an invasion is limited.Credit…Sergey Pivovarov/Reuters

The step, which could be an indication that planning for an attack continues, comes as the number of Russian troops at the border has remained steady in recent weeks, despite U.S. expectations of a surge.

By Julian E. BarnesMichael Crowley and Eric SchmittJan. 10, 2022

WASHINGTON — The number of Russian troops at Ukraine’s border has remained steady in recent weeks, despite U.S. intelligence predictions of a surge, but American officials say that President Vladimir V. Putin has begun taking steps to move military helicopters into place, a possible sign that planning for an attack continues.

American officials had expected additional Russian troops to stream toward the Ukrainian border in December and early January, building toward a force of 175,000.

While troop movements have slowed, there are still 100,000 military personnel near the border and now the Russians have positioned additional attack aircraft there, American officials said. Attack and transport helicopters, along with ground attack fighter jets, would be a critical Russian advantage, should Mr. Putin decide to invade Ukraine.

U.S. officials say the Russian president’s window for an invasion is limited, dictated by temperatures that will freeze the ground — allowing for the easy movement of heavy vehicles and equipment — before a spring thaw, which could begin by March, creates a muddy quagmire.

But a relatively mild winter has slowed the ground’s freezing, and Mr. Putin’s deadline for committing his forces has slipped further toward the spring, officials say. The hard winter freeze that typically comes to Ukraine by January has not happened in many areas of the country. As long as the ground remains muddy, senior administration officials said, Mr. Putin might be forced to push back a ground offensive until February at the earliest.

To get a better sense of possible conditions this year, the Biden administration has enlisted meteorologists to look more closely at the likely weather in Ukraine in the coming weeks, according to a U.S. official.

The officials interviewed for this article requested anonymity to discuss sensitive and classified assessments of Russian military movements, along with American efforts to learn about those deployments.

The United States has been regularly flying Air Force RC-135 Rivet Joint electronic-eavesdropping planes over Ukraine since Dec. 27. The planes allow American intelligence operatives to listen to Russian ground commanders’ communications. The Air Force is also flying E-8 JSTARS ground-surveillance planes to track the Russian troop buildup and the movements of the forces.

The United States is particularly interested in indications that Russia may deploy any of its tactical nuclear weapons to the border, a move that Russian officials have suggested could be an option.

The intelligence agencies have told administration officials that while the Russians have continued planning an invasion, they do not believe Mr. Putin has decided whether to begin an incursion. For their part, Russian officials reiterated on Monday that they do not plan to invade Ukraine.

A fierce diplomatic push to give Mr. Putin face-saving alternatives to military action began this week in Geneva, where Deputy Secretary of State Wendy Sherman led a U.S. delegation for talks with her Russian counterpart, Sergei A. Ryabkov, and other Russian officials.

But Secretary of State Antony J. Blinken told reporters at the State Department on Friday that “actual progress is going to be very difficult to make, if not impossible, in an environment of escalation by Russia.” And after eight hours of meetings with the Russians, Ms. Sherman told reporters that such de-escalation had not occurred and that the talks had amounted merely to “a discussion, a better understanding of each other and each other’s priorities.”

Mr. Putin has made several demands, including that NATO formally pledge never to admit Ukraine and Georgia as members, that U.S. and NATO officials call nonstarters. Instead, the United States is dangling more modest offers, like assurances that American missiles will not be placed in Ukrainian territory — something Washington has never seriously contemplated.

Understand Russia’s Relationship With the West

The tension between the regions is growing and Russian President Vladimir Putin is increasingly willing to take geopolitical risks and assert his demands.

Despite publicly expressing uncertainty about Mr. Putin’s intentions, U.S. officials have assessed that there is little likelihood that he will back down from what they have described as maximalist positions. The Biden administration has promised allies that it will not make any offers to Russia that they do not support, taking off the table any sort of unilateral troop withdrawal from Eastern Europe or pledge not to further integrate Ukraine with the rest of Europe.

Mr. Putin has massed his forces along Russia’s border with eastern Ukraine, where for nearly eight years he has supported a pro-Russian insurgency that has left up to 14,000 people dead.

In early December, American intelligence agencies predicted that Mr. Putin was planning to gather as many as 175,000 troops for a potential incursion into Ukraine.

Weeks later, Mr. Putin withdrew some 10,000 troops near Ukraine. But American officials said those troops were not part of the force that Mr. Putin appeared to be gathering for a potential invasion in January or February.


A brewing conflict. Antagonism between Ukraine and Russia has been simmering since 2014, when the Russian military crossed into Ukrainian territory, annexing Crimea and whipping up a rebellion in the east. A tenuous cease-fire was reached in 2015, but peace has been elusive.

A spike in hostilities. Russia has recently been building up forces near its border with Ukraine, and the Kremlin’s rhetoric toward its neighbor has hardened. Concern grew in late October, when Ukraine used an armed drone to attack a howitzer operated by Russian-backed separatists.

Ominous warnings. Russia called the strike a destabilizing act that violated the cease-fire agreement, raising fears of a new intervention in Ukraine that could draw the United States and Europe into a new phase of the conflict.

The Kremlin’s position. President Vladimir V. Putin of Russia, who has increasingly portrayed NATO’s eastward expansion as an existential threat to his country, said that Moscow’s military buildup was a response to Ukraine’s deepening partnership with the alliance.

A measured approach. President Biden has said he is seeking a stable relationship with Russia, though tension has been rising. So far, his administration is focusing on maintaining a dialogue with Moscow, while seeking to develop deterrence measures in concert with European countries.

Still, intelligence officials thought there would be more of a troop buildup throughout December. A senior administration official said the Russian deployments were continuing, but at a slower pace than in early December.

Currently, Russia has just under 60 battalion tactical groups on the ground, or somewhere between 85,000 and 100,000 troops, according to American officials. Those troops have conducted exercises and drills, demonstrating that the Russian forces are at their highest levels of readiness.

In addition to building up aviation assets, the Russian government has ordered in more units specializing in logistics. While aviation assets would be critical to protecting ground troops during the invasion, the logistics units would be needed to support the ground forces in the event Mr. Putin orders his forces across the border.

More than 150 U.S. military advisers are in Ukraine, trainers who have for years worked out of the training ground near Lviv, in the country’s west, far from the front lines. The current group includes Special Operations forces, mostly Army Green Berets, as well as National Guard trainers from Florida’s 53rd Infantry Brigade Combat Team.

Military advisers from about a dozen allied countries are also in Ukraine, U.S. officials said. Several NATO countries, including Britain, Canada, Lithuania and Poland, have regularly sent training forces to the country.

In the event of a full-scale Russian invasion, the United States intends to move its military trainers out of the country quickly. But it is possible that some Americans could stay to advise Ukrainian officials in Kyiv, the capital, or provide front-line support, a U.S. official said.

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Pentagon officials have warned their Russian counterparts that they need to de-escalate the situation, because an invasion would not end well for Moscow. Gen. Mark A. Milley, the chairman of the Joint Chiefs of Staff, spoke bluntly to Gen. Valery Gerasimov, Russia’s chief of the general staff, on Dec. 22. Defense Secretary Lloyd J. Austin III followed that with more diplomatic comments to Russia’s defense minister, Sergei K. Shoigu, on Thursday.

On Monday, General Milley spoke with his Ukrainian counterpart, Lt. Gen. Valery Zaluzhny, about the Russian troop presence and the security situation.

There is still no consensus within the administration, much less the alliance, on how or when to support an insurgency in Ukraine should Russia conduct a full-scale invasion, expand its presence in the Donbas region or some other scenario, according to a senior administration official. Officials in the Biden administration are intensely debating what the available options might be depending on which situations play out.

David E. Sanger contributed reporting.

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