By YURAS KARMANAU

KYIV, Ukraine (AP) — Ukraine’s leaders sought to reassure the nation that a feared invasion from neighboring Russia was not imminent, even as they acknowledged the threat is real and prepared to accept a shipment of American military equipment Tuesday to shore up their defenses.

Russia has denied it is planning an assault, but it has massed an estimated 100,000 troops near Ukraine in recent weeks, leading the United States and its NATO allies to rush to prepare for a possible war.

Several rounds of high stakes diplomacy have failed to yield any breakthroughs, and this week tensions escalated further. NATO said it was bolstering its deterrence in the Baltic Sea region, and the U.S. ordered 8,500 troops on higher alert to potentially deploy to Europe as part of an alliance “response force” if necessary.

The State Department has ordered the families of all American personnel at the U.S. Embassy in Kyiv to leave the country, and it said that nonessential embassy staff could leave. Britain said it, too, was withdrawing some diplomats and dependents from its embassy.

In Ukraine, however, authorities have sought to project calm.

Ukrainian President Volodymyr Zelenskyy said late Monday that the situation was “under control” and that there is “no reason to panic.”

Defense Minister Oleksii Reznikov said that, as of Monday, that Russia’s armed forces had not formed what he called battle groups, “which would have indicated that tomorrow they would launch an offensive.”

“There are risky scenarios. They’re possible and probable in the future,” Reznikov told Ukraine’s ICTV channel on Monday. “But as of today … such a threat doesn’t exist.”

Oleksiy Danilov, the secretary of Ukraine’s National Security and Defense Council, echoed that sentiment, saying that the movement of Russian troops near Ukraine’s border “is not news.”

“As of today, we don’t see any grounds for statements about a full-scale offensive on our country,” Danilov said Monday.

Russia has said Western accusations that it is planning an invasion are merely a cover for NATO’s own planned provocations. Kremlin spokesman Dmitry Peskov on Tuesday once again accused the U.S. of “fomenting tensions” around the Ukraine, a former Soviet state that Russia has been locked in a bitter tug-of-war with for almost eight years.

In 2014, following the ouster of a Kremlin-friendly president in Ukraine, Moscow annexed the Crimean peninsula and threw its weight behind a separatist insurgency in the country’s industrial heartland in the east. The fighting between Ukrainian forces and Russia-backed rebels has since killed over 14,000 people, and efforts to reach a peaceful settlement of the conflict have stalled.

In the latest standoff, Russia has demanded guarantees from the West that NATO would never allow Ukraine to join and that the alliance would curtail other actions, such as stationing troops in former Soviet bloc countries. Some of these, like any pledge to permanently bar Ukraine, are non-starters for NATO — creating a seemingly intractable stalemate that many fear can only end in war.

Putting the U.S.-based troops on heightened alert for Europe on Monday suggested diminishing hope that Russian President Vladimir Putin will back away from what U.S. President Joe Biden himself has said looks like a threat to invade neighboring Ukraine.

As part of a new $200 million in security assistance directed to Ukraine from the United States, a shipment including equipment and munitions is also expected to arrive Tuesday in Ukraine.

The U.S. moves are being done in tandem with actions by other NATO member governments to bolster a defensive presence in Eastern Europe. Denmark, for example, is sending a frigate and F-16 warplanes to Lithuania; Spain is sending four fighter jets to Bulgaria and three ships to the Black Sea to join NATO naval forces, and France stands ready to send troops to Romania.

By LORNE COOK

BRUSSELS (AP) — Tensions soared Monday between Russia and the West, with NATO outlining a series of potential troop and ship deployments and Ireland warning that upcoming Russian war games off its coast would not be welcome while concerns abound that Moscow is planning to invade Ukraine.

The Western alliance’s statement summed up moves already announced by individual member countries — but restating them under the NATO banner appeared aimed at showing the alliance’s resolve. It was just one of a series of announcements that signaled the West is ramping up its rhetoric in the information war that has accompanied the Ukraine standoff.

Russia has massed an estimated 100,000 troops near Ukraine’s border and is demanding that NATO promise it will never allow Ukraine to join and that other actions, such as stationing alliance troops in former Soviet bloc countries, be curtailed. Some of these, like any pledge to permanently bar Ukraine, are non-starters for NATO — creating a seemingly intractable standoff that many fear can only end in war.

Russia denies it is planning an invasion, and has said the Western accusations are merely a cover for NATO’s own planned provocations. Recent days have seen high-stakes diplomacy that failed to reach any breakthrough and maneuvering on both sides.

On Monday, NATO said that it is beefing up its “deterrence” in the Baltic Sea area. Denmark is sending a frigate and deploying F-16 war planes to Lithuania; Spain is sending three ships to join NATO naval forces and four fighter jets to Bulgaria; and France stands ready to send troops to Romania. The Netherlands also plans to send two F-35 fighter aircraft to Bulgaria from April.

Secretary-General Jens Stoltenberg said the alliance will “take all necessary measures to protect and defend all allies.” He said: “We will always respond to any deterioration of our security environment, including through strengthening our collective defense.”

Kremlin spokesman Dmitry Peskov charged that it was NATO and the U.S. who were behind “tensions escalating” in Europe, not Russia.

“All this is happening not because of what we, Russia, are doing. This is happening because of what NATO, the U.S. are doing,” Peskov said during a conference call with reporters. He also cited U.S. media reports suggesting that Russia is evacuating its diplomats from Ukraine, something officials in Moscow denied.

The NATO announcement came as European Union foreign ministers sought to put on a fresh display of unity in support of Ukraine, and paper over concerns about divisions on the best way to confront any Russian aggression.

In a statement, the ministers said the EU has stepped up sanction preparations and they warned that “any further military aggression by Russia against Ukraine will have massive consequences and severe costs.”

Separately, the EU also committed to increase financial support for embattled Ukraine, vowing to push through a special package of 1.2 billion euros ($1.4 billion) in loans and grants as soon as possible.

The West is nervously watching Russian troop movements and war games in Belarus for any signs that a new invasion of Ukraine is imminent. Russia has already invaded Ukraine once, annexing the Crimean Peninsula in 2014. Moscow has also supported pro-Russian Ukrainian separatists fighting the Kyiv government in the Donbass region. Fighting in eastern Ukraine has killed around 14,000 people and still simmers.

Asked whether the EU would follow a U.S. move and order the families of European embassy personnel in Ukraine to leave, EU foreign policy chief Josep Borrell said: “We are not going to do the same thing.” He said he is keen to hear from U.S. Secretary of State Antony Blinken about that decision.

Britain on Monday also announced it is withdrawing some diplomats and dependents from its embassy in Kyiv. The Foreign Office said the move was “in response to the growing threat from Russia.”

Ukraine’s Foreign Ministry spokesman, Oleg Nikolenko, said the U.S. decision was “a premature step” and a sign of “excessive caution.” He said that Russia is sowing panic among Ukrainians and foreigners in order to destabilize Ukraine.

Germany has issued no order, but it has announced that the families of embassy staffers may leave if they wish. Foreign Minister Annalena Baerbock stressed that “we must not contribute to unsettling the situation further; we need to continue to support the Ukrainian government very clearly and above all maintain the stability of the country,”

Arriving at the EU meeting, Irish Foreign Minister Simon Coveney said he would inform his counterparts that Russia plans to holds war games 240 kilometers (150 miles) off Ireland’s southwest coast — in international waters but within Ireland’s exclusive economic zone.

“This isn’t a time to increase military activity and tension in the context of what’s happening with and in Ukraine.” Coveney said. “The fact that they are choosing to do it on the western borders, if you like, of the EU, off the Irish coast, is something that in our view is simply not welcome.”

Some of the member countries closest to Russia — Estonia, Latvia and Lithuania — have confirmed that they plan to send U.S.-made anti-tank and anti-aircraft missiles to Ukraine, a move endorsed by the United States.

But questions have been raised about just how unified the EU is. Diverse political, business and energy interests have long divided the 27-country bloc in its approach to Moscow. Around 40% of the EU’s natural gas imports come from Russia, much of it via pipelines across Ukraine — and many are skittish about being cut off from that supply in winter, with prices already soaring.

The EU’s two major powers appear most cautious. French President Emmanuel Macron has renewed previously rejected calls for an EU summit with Putin.

Late on Saturday, the head of the German navy, Vice Admiral Kay-Achim Schoenbach, resigned after coming under fire for saying that Ukraine would not regain the Crimean Peninsula, and for suggesting that Putin deserves “respect.”

Still, diplomats and officials said hard-hitting sanctions are being drawn up with the EU’s executive branch, the European Commission. They were reluctant to say what the measures might be or what action by Russia might trigger them, but said they would come within days of any attack.

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Associated Press writers Yuras Karmanau in Kyiv, Ukraine, Dasha Litvinova in Moscow, Geir Moulson in Berlin, Aritz Parra in Madrid, Mike Corder in The Hague, and Raf Casert in Brussels contributed.