PARIS >> France and Britain will continue to forge ahead with plans to deploy troops in Ukraine to defend an eventual peace deal with Russia but only some other nations want to take part, French President Emmanuel Macron said Thursday after a summit of countries that have been mulling the proposal.

The French leader said “several” nations other than France and Britain want to be part of the armed force but added, “It is not unanimous.” Paris and London say such a force would aim to secure any peace deal by dissuading Russia from attacking Ukraine again.

“We do not need unanimity to achieve it,” Macron said. French and British military officials will work with Ukraine to determine where the contingents should be deployed and how many troops they’d need to be a credible deterrent, the French leader added.

“There will be a reassurance force with several European nations that will deploy,” he insisted.

The summit of leaders of nearly 30 countries plus NATO and European Union chiefs came at a crucial juncture in the more than three-year war, with intensifying diplomatic efforts to broker ceasefires, driven by pressure from U.S. President Donald Trump.

But fighting rages on.

Before the leaders met in the luxury of the French presidential palace, Russian drone attacks overnight wounded more than 20 people and heavy shelling Thursday afternoon killed one person and knocked out electricity in parts of Kherson, Ukrainian officials said.

Macron and other summit participants accused Russia of only pretending to want a negotiated settlement.

“They are playing games and they’re playing for time,” said U.K. Prime Minister Keir Starmer. “We can’t let them drag this out while they continue prosecuting their illegal invasion.”

U.S.-brokered agreements this week to safeguard shipping in the Black Sea and last week to halt long-range strikes on energy infrastructure were greeted as first steps toward peace. But Ukraine and Russia have disagreed over the details and accused each other of deal violations, foreshadowing a long and contentious process ahead.

One reason why some European countries are balking at a potential deployment in Ukraine is because it’s unclear whether Trump would support such a contingent with air power and other military assistance.

“This will require the engagement and support of the United States,” Starmer said. “That’s a discussion we’ve had with the president on many occasions.”

Macron suggested they may have to do without U.S. backing.

“You have to hope for the best, but prepare for the worst,” he said. “My hope is that the Americans will be on our side and that the Americans will support, even play an active role.”

“But we have to be prepared for a situation where perhaps they won’t join in,” he added.

Building a force big enough to act as a credible deterrent — U.K. officials have talked about possibly 10,000 to 30,000 troops — would be a considerable effort for nations that shrank their militaries after the Cold War but are now rearming.