President Vladimir Putin said Wednesday that Moscow would seek Western guarantees precluding any further NATO expansion and deployment of its weapons near his country's borders, a stern demand that comes amid fears of a Russian invasion of Ukraine. 

Ukrainian and Western officials have worried about a Russian troop buildup near Ukraine, saying it could signal Moscow's intention of an attack. Russian diplomats countered those claims by expressing concern about Ukraine’s own military buildup near the area of the separatist conflict in the eastern part of the country. 

Speaking at a Kremlin ceremony where he received credentials from foreign ambassadors, Putin emphasized that Russia will seek "reliable and long-term security guarantees." 

Russian President Vladimir Putin speaks during a ceremony to receive credentials from foreign ambassadors in Kremlin, in Moscow, Russia, Wednesday, Dec. 1, 2021.

Russian President Vladimir Putin speaks during a ceremony to receive credentials from foreign ambassadors in Kremlin, in Moscow, Russia, Wednesday, Dec. 1, 2021.  (Grigory Sysoev, Sputnik, Kremlin Pool Photo via AP)

PUTIN WARNS NATO NOT TO DEPLOY TROOPS OR WEAPONS TO UKRAINE 

"In a dialogue with the United States and its allies, we will insist on working out specific agreements that would exclude any further NATO moves eastward and the deployment of weapons systems that threaten us in close vicinity to Russian territory," Putin said. 

He charged that "the threats are mounting on our western border," with NATO placing its military infrastructure closer to Russia and offered the West to engage in substantive talks on the issue, adding that Moscow would need not just verbal assurances, but "legal guarantees." 

"We aren't demanding any special conditions for ourselves and realize that any agreements must take interests of Russia and all Euro-Atlantic countries into account," Putin said. "A calm and stable situation must be ensured for all and is needed for all without exclusion." 

Putin's statement came a day after he sternly warned NATO against deploying its troops and weapons to Ukraine, saying it represented a red line for Russia and would trigger a strong response. 

Tensions have been soaring in recent weeks about a Russian troop buildup near Ukraine, which worried Ukrainian and Western officials, who saw it as a possible sign of Moscow's intention to invade its former Soviet neighbor. NATO foreign ministers warned Russia on Tuesday that any attempt to further destabilize Ukraine would be a costly mistake. 

The Kremlin insists it has no such intention and has accused Ukraine and its Western backers of making the claims to cover up their own allegedly aggressive designs. 

Russian Foreign Minister Sergey Lavrov said the concentration of Ukrainian troops looks "alarming," adding that he was going to raise the issue during a ministerial meeting in Stockholm of the Organization for Security and Cooperation in Europe on Thursday. He again assailed Ukraine for failing to meet its obligations under a 2015 peace deal for the region that was brokered by France and Germany and signed in Minsk, Belarus. 

Russian Foreign Minister Sergey Lavrov pauses during his and Brazilian Foreign Minister Carlos Franca's joint news conference following their talks in Moscow, Russia, Tuesday, Nov. 30, 2021.

Russian Foreign Minister Sergey Lavrov pauses during his and Brazilian Foreign Minister Carlos Franca's joint news conference following their talks in Moscow, Russia, Tuesday, Nov. 30, 2021.  (Russian Foreign Ministry Press Service via AP)

"Kyiv is becoming increasingly insolent in its aggressiveness towards the Minsk agreements, the Russian Federation, and in its attempts to provoke the West to support its military ambitions," Lavrov said in remarks in the upper house of Russia's parliament. 

The U.S. State Department and Russia's Foreign Ministry said Blinken and Lavrov will meet Thursday on the sidelines of the OSCE meeting. A State Department official said Blinken will meet first with Ukrainian Foreign Minister Dmytro Kuleba. 

Russian Foreign Ministry spokeswoman Maria Zakharova said Ukraine has amassed about 125,000 troops — about half of the size of its military — near the conflict zone. She also pointed at an increasing number of violations of a cease-fire in the east. 

Amid the tensions, Moscow on Wednesday launched drills in southwestern Russia involving over 10,000 troops. A smaller exercise also began in Russia's westernmost region of Kaliningrad on the Baltic, involving 1,000 personnel from armored units. 

Russia annexed Ukraine’s Crimean Peninsula in 2014 after the country’s Kremlin-friendly president was driven from power by mass protests. Moscow also threw its weight behind a separatist insurgency in Ukraine’s eastern industrial heartland, known as the Donbas. More than 14,000 people have died in the fighting. 

Ukrainian President Volodymyr Zelenskyy addresses lawmakers in Kyiv, Ukraine, Wednesday, Dec.1, 2021.

Ukrainian President Volodymyr Zelenskyy addresses lawmakers in Kyiv, Ukraine, Wednesday, Dec.1, 2021. Ukraine marks the 30th anniversary of the referendum on independence.  (AP Photo/Efrem Lukatsky)

Ukraine and the West accused Russia of sending its troops and weapons to back the rebels. Moscow denied that, charging that Russians who joined the separatists were volunteers. 

In Wednesday's address to parliament, Ukrainian President Volodymyr Zelenskyy called for negotiations with Russia to end the conflict in the east. 

"We must tell the truth — we wouldn't be able to stop the war without direct talks with Russia," Zelenskyy said. "We aren't afraid of a direct dialogue." 

The Kremlin responded by reaffirming its long-held stance that Russia isn't a party to the conflict, describing the fighting in the east as a civil war. 

"The war in Donbas is Ukraine's internal business," Kremlin spokesman Dmitry Peskov told reporters. "We know about the attempts to cast Russia as a party to the conflict, but it's not so. It's only possible to end the war in Donbas through talks between Ukrainians." 

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Peskov said the Ukrainian troop concentration in Donbas could herald an attempt by Kyiv to reclaim control of the rebel-held territory. 

"It makes us worry that inclinations to solve the Donbas problem by force could prevail," he said. "It's a very dangerous adventurism."