Is Russia about to make a 'serious mistake' in Ukraine?

Russian military shifts and stinging Kremlin criticisms of Ukraine are raising questions about Moscow's aims. In 2014, Russia’s seizure and annexation of Crimea and invasion of eastern Ukraine led to a strong Western response — a jump in military aid to Ukraine, a NATO buildup on its eastern flank and unprecedented sanctions. What could be in store now?

There are multiple reasons to be wary. 

On Nov. 1, Politico reported that satellite images showed a “buildup of armored units, tanks and self-propelled artillery” in Russia near Belarus, and a relocation of tanks from near Moscow to Ukraine's border. President BidenJoe BidenMan sentenced to nearly four years for running scam Trump, Biden PACs Dole in final column: 'Too many of us have sacrificed too much' Meadows says Trump's blood oxygen level was dangerously low when he had COVID-19 MORE’s security advisor, Jake Sullivan, said the U.S. was consulting with allies and partners.

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Earlier Russian military actions also spurred unease. In September, Russia and Belarus conducted a huge Zapad-21 military exercise, “far more robust” than one four years prior. Last spring in an out-of-cycle move, Russia shifted substantial forces closer to Ukraine and into Crimea. The U.S. European Command raised its alert level, and U.S. Chairman of the Joint Chiefs of Staff Mark MilleyMark MilleyOvernight Defense & National Security — Preparing for the Biden-Putin call Pentagon chief holds high-level meeting on situation in Ukraine, Russia The Cassandra forecast: Biden's 2022 global war MORE called Russian Chief of the General Staff Valery Gerasimov.

Kremlin rebukes also cause anxiety. On Nov. 1, Foreign Minister Sergei Lavrov warned of "attempts to carry out provocations … and drag Russia into some kind of combat." Some in the West might see this as cover for renewed aggression. On Oct. 22, Russian President Vladimir PutinVladimir Vladimirovich PutinThe Memo: Biden, bruised by Afghanistan, faces a critical test in Ukraine Biden holds call with European leaders to talk Russia Overnight Defense & National Security — Preparing for the Biden-Putin call MORE said a visit by Secretary of Defense Lloyd AustinLloyd AustinOvernight Defense & National Security — Preparing for the Biden-Putin call Five things to know about Russia's troop buildup near Ukraine  Austin warns Congress of 'enormous' negative effects of yearlong stopgap bill MORE to Ukraine had “opened doors” for it to join NATO. This is a distant prospect. Putin aide Dmitri Medvedev claims Ukraine’s leaders are hostage to “rabid” nationalist forces, which is erroneous.

That said, the Kremlin’s intentions regarding Ukraine remain uncertain. Some earlier troubling signs did not presage imminent threats. On Nov. 3, Gen. Milley described Russian movements as not “overtly aggressive.” On Nov. 8, however, CNN reported that earlier in the week in Moscow, Central Intelligence Agency Director William BurnsWilliam BurnsCIA director says there will be consequences if Russia is behind 'Havana Syndrome' attacks Senior-level engagement with Russia is good — if it's realistic Is Russia about to make a 'serious mistake' in Ukraine? MORE had voiced “serious” concerns to Putin about Russia’s military buildup along Ukraine’s border. And on Nov. 10, Secretary of State Antony BlinkenAntony BlinkenBiden holds call with European leaders to talk Russia Five things to know about Russia's troop buildup near Ukraine  Malala Yousafzai urges US to take action for Afghan women and girls MORE warned Moscow against making a “serious mistake” in Ukraine.

Perhaps Moscow seeks only to discourage further Western military support for Ukraine. But if Russia were to heighten threats, the West could take stronger measures. Those the West took after 2014 might hint at how the West could raise costs to Russia.

The U.S. and NATO have provided substantial training, equipment and advisory assistance to Ukraine. The U.S. has sent modern armed patrol boats and portable Javelin missiles lethal against Russian tanks. In September, the U.S. announced further aid in response to the “major increase in Russian military activity” along Ukraine’s border. 

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A second Western response has been NATO’s eastern build-up of forces. It now rotates four battalion-sized land combat units to Estonia, Latvia, Lithuania and Poland. A multinational brigade, including air power, rotates to Romania. Since 2014, the U.S. has spent billions of dollars to enhance collective security in Europe.

A third dimension of the Western response is sanctions. They might have reduced Russia’s economic growth by as much as 2.5-to-3.0 percent per year. Sanctions combined with the pushback by Ukrainian fighters against Russian forces in summer 2014 in eastern Ukraine might have helped dissuade the Kremlin from attempting to take all of eastern and southern Ukraine. The Kremlin had hinted that its goal was to seize what it calls Novorossiya.

If it were to become necessary, what new steps might the West consider? 

One may be supplying a wider range of lethal weaponry. The U.S. House Committee on Armed Services has called for a Biden administration report on how to help Ukraine address air and missile defense gaps. The U.S. could send Ukraine portable Stinger air defenses or Iron Dome defenses against short-range missiles.

NATO could further buttress eastern defenses. A RAND study found that at present “NATO cannot successfully defend the territory of its most exposed members.” Wargaming suggests that a force of seven brigades could prevent a “rapid overrun” of the Baltics. This might involve an order of magnitude more combat power. NATO states could also send more warships into the Black Sea, subject to limits in the Montreux Convention.

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Tougher sanctions might be a third response. Sen. Lindsey GrahamLindsey Olin GrahamGOP senators introduce bill targeting Palestinian 'martyr payments' Bipartisan senators earmark billion to support democracies globally Democrats see Christmas goal slipping away MORE (R-S.C.) warns of “sanctions from hell.” In 2017 by near-unanimous votes in both chambers, Congress passed a sweeping sanctions bill aimed mainly at Russia. A recent Biden administration review cautioned that economic and financial sanctions are best used in “collaboration with our allies.” In 2014, such coordination with Europe amplified the effect of Western sanctions. 

Now is probably not the best time to be breathless about the risk of increased Russian threats in Ukraine. This may, or may not, be Moscow’s purpose. But the West will be watching. 

William Courtney is an adjunct senior fellow at the nonprofit, nonpartisan RAND Corporation and a former U.S. ambassador to Kazakhstan, Georgia and the U.S.-Soviet commission to implement the Threshold Test Ban Treaty.