The military alliance’s foreign ministers are due to meet in Prague to prepare an aid package for Ukraine ahead of NATO’s July summit.

The two-day gathering starting on Thursday in the Czech capital is meant to focus on efforts to hammer out a package of support for Ukraine at NATO’s summit in Washington in July.

But the swirling debate over whether to let Kyiv use arms sent by Western backers to strike inside Russia risks overshadowing the meeting.

Ukraine has been pressing its supporters – chiefly the United States – to allow it to use the longer-range weaponry they supply to hit targets inside Russia.

Divided views

The US and Germany have so far refused to permit Kyiv to strike over the border out of fear that it could drag them closer to direct conflict with Moscow.

Before the NATO meeting – which starts with a dinner on Thursday – alliance chief Jens Stoltenberg said repeatedly it was time for members to reconsider those limits as they hamper Kyiv’s ability to defend itself.

French President Emmanuel Macron appeared to shift the dial on Tuesday when he said Ukraine should be allowed to “neutralise” bases in Russia used to launch strikes.

German Chancellor Olaf Scholz, however, remained less committal, saying Ukraine should act within the law – and Berlin had not supplied the weapons to hit Russia, anyway.

Across the Atlantic, the White House said it still opposed Ukraine using US arms to strike inside Russia, although Secretary of State Antony Blinken hinted that the strategy could change.

Moscow, meanwhile, has reacted strongly – with President Vladimir Putin warning there would be “serious consequences” if Western countries give approval to Ukraine.

Those pressing for Ukraine to be given a freer rein say they hope momentum is building for the United States and others to change course as Kyiv struggles to stop Russia’s offensive in the Kharkiv region.

“Clearly, President Macron’s ideas help allies who believe this rule should change,” said a diplomat from one NATO country. “I hope the debates in the US will take Macron’s ideas into consideration.”

As NATO allies wrestle with that issue, ministers in Prague are also trying to come up with a support package that keeps Ukraine satisfied as its hopes of eventual membership remain a distant prospect.

After pressing hard at a summit last year, Kyiv has been told firmly by NATO countries – led by the US and Germany – that it should not expect any concrete progress towards joining the alliance in Washington.

NATO chief Stoltenberg instead wants to get alliance members to make clear, multi-year commitments on how much aid they’ll give to Ukraine in the future.

Last month, he floated an overall target figure of 100 billion euros ($108bn) over five years, but that fell flat among allies confused over what it would involve.