Hard-to-find gunpowder is hindering Europe's scramble to provide hundreds of thousands of shells for Ukraine's defensive effort against Russian invaders, with solutions only starting to emerge.
"We have all become aware of the need to face up to the scarcity of some components, especially gunpowders," French President Emmanuel Macron said Monday after a gathering of Kyiv's allies in Paris.
"Powder is really what's lacking today," he added.