Finland Foreign Minister Pekka Haavisto told CNN that "of course" war in Europe beyond Ukraine is a possibility.
"Of course it's a possibility. And that's why it's so important to support Ukraine at the moment," Haavisto told CNN's Jim Sciutto.
Following decades of neutrality, Finland — along with Sweden — was formally invited to join NATO this week during the alliance's summit in Madrid, marking a historic expansion of the defense bloc that directly undercuts Russian President Vladimir Putin's aims as his war in Ukraine grinds ahead.
The group collectively decided to approve countries' applications to join after Turkey dropped its objections Tuesday, paving the way for NATO's most consequential enlargement in decades. The decision will now go to the 30 member states' parliaments and legislatures for final ratification. NATO's leaders said they expected the process to move quickly, allowing for an unprecedentedly swift accession and a show of unity against Putin.
When asked if Ukraine can win the war, Haavisto said, "They can maintain the situation and in that sense, they can win this battle. I think they are of course morally on the high ground. They are very united."
"They need our support," he added.
CNN's Jamie Crawford contributed reporting to this post.