Emmanuel Macron has said that France, Germany and Poland are "united" after a rift was exposed over Europe's response to Russia's war in Ukraine, reports BBC News.
The French president had warned the "security of Europe and the French is at stake" and if Russia wins Europe's credibility will be "reduced to zero".
But Germany's Olaf Scholz has been far more cautious, ruling out the deployment of the country's Taurus cruise missiles.
Ukraine faces a critical arms shortage.
The German chancellor has come under pressure to extend his government's help, because a $60bn (£47bn; €55bn) US military aid package for Ukraine has been blocked in Congress by Republicans on the Right.
Germany remains Europe's biggest source of military aid for Ukraine, but Polish Prime Minister Donald Tusk, who joined the two leaders in Berlin later, said it was now up to their three countries to "mobilise all of Europe" to provide Ukraine with help.
He denied reports of a rift at a press conference, calling them "exaggerated" and "malicious rumours".
"True solidarity with Ukraine? Less words, more ammunition," he had posted on social media earlier on Friday.
Their meeting came as a Russian missile attack on the southern Ukrainian port city of Odesa killed 20 people and left dozens more wounded, according to the regional head. Among those killed and wounded were emergency medical teams.