KYIV, Ukraine (AP) — Ukraine’s Western allies have sent the country 65 billion euros ($70 billion) in military aid to help thwart Russia’s full-scale invasion, NATO Secretary-General Jens Stoltenberg said Monday, and with no peace negotiations on the horizon the alliance is gearing up to send more.

“We cannot allow Russia to continue to chip away at European security,” Stoltenberg told a news conference in Brussels, adding “there are no signs that (Russian President Vladimir) Putin is preparing for peace. He is preparing for more war.”

NATO foreign ministers meeting in Brussels on Tuesday “will discuss how we can step up our support, including by continuing to strengthen Ukraine’s armed forces,” Stoltenberg said. “Our support is for the long-haul.”

Analysts suspect Putin plans to dig in and hold out against a possible Ukraine counteroffensive in the coming months, hoping that the West’s costly support for Kyiv will unravel.

Putin’s invasion in February 2022 backfired in some key respects. It led NATO to deploy more troops and weapons into the territories of its members in Eastern Europe and persuaded Sweden and Finland to scrap their neutrality and seek NATO membership.

Finland will formally join the alliance on Tuesday, Stoltenberg said.

The war has also bound together more tightly foreign leaders viewed by Putin as adversaries.

In a fresh example of the closer ties that Ukraine is forging, Ukrainian President Volodymyr Zelenskyy is to head to Warsaw on Wednesday for a meeting with Polish President Andrzej Duda. Polish authorities announced the visit Monday in an unusually early disclosure of the Ukrainian leader’s travel plans.

Against a backdrop of fears among Russia’s other neighbors about the Kremlin’s ambitions, the leaders of Germany, Romania and Moldova were due Monday to look at ways of shoring up defences along NATO’s eastern flank.

German Chancellor Olaf Scholz was meeting in Bucharest with Romanian President Klaus Iohannis and Moldovan President Maia Sandu. Their talks were expected to focus on security, the economy and energy supply.

Meanwhile, German Vice Chancellor Robert Habeck, who is also the economy minister and responsible for energy, arrived in Kyiv on Monday on an unannounced visit. He travelled with a business delegation that included the head of Germany’s main industry lobby group, the Federation of German Industries.

Habeck said the trip was meant to send a clear signal “that we believe they will be victorious, that they will be rebuilt, that there is an interest on Europe’s part not just to support them in an emergency, but in Ukraine being an economically strong partner in the future.”

Zelenskyy and Habeck visited the village of Yahidne — 140 kilometres (87 miles) north of Kyiv. Zelenskyy stopped at the Yahidne secondary school, in whose basement Russian occupiers forcibly kept 367 Ukrainian civilians for 27 days in March of last year. Eleven people died in the dark, crowded basement.