Discussion by Western democracies of direct military intervention in Ukraine's war against Russia is good and shows awareness of the risk to Europe from Russian aggression, a senior Ukrainian presidential official told Reuters on Tuesday.

French President Emmanuel Macron raised the possibility Monday of European nations sending troops to Ukraine, although he cautioned that there was no consensus, as allies agreed to try harder to get more munitions to Kyiv.

"This shows, firstly, an absolute awareness of the risks posed to Europe by a militaristic, aggressive Russia," presidential adviser Mykhailo Podolyak said in a written comment on Macron's statement.