Many European countries have spoken out against this possibility, notably Germany, Sweden and the Visegrad Group countries. The option, which had never before been mentioned, divides the allies.

At this stage, no country has clearly declared itself ready to send troops to Ukrainian soil. For its part, the Kremlin warns: sending troops to Ukraine would “not be in the interest” of the West. The United States, represented Monday evening, has not yet reacted officially to the French hypothesis. “This shows absolute awareness of the risks posed to Europe by a militaristic and aggressive Russia,” a presidential adviser said on Tuesday.