I recommend this video on French defence strategy https://youtu.be/n5eUh3_eo9E?si=k19OmbQiGVdw2LXB
And this one on Germany's very cumbersome procurement tgat is part of why Germany is not keen on rearmament (apart from the obvious: they know what they did) https://youtu.be/8jDUVtUA7rg?si=Du6Rrq2TolbIIaw5
that said Macron is at the moment the only European leader outside of the Baltics that is keen on sending people to Ukraine.
"Why are we shocked? Of course if a country has a weapon it also conceives a situation where it would use it. If a country would never under no circumstance use a weapon it would not have the weapon at all. Every country who has a weapon also conceives a scenario when to use it. Even if they don't issue reminders"
-- My own translation from an interview to Alessandro Barbero
For that reason, it is difficult to get rid of inherited weapons. A plausible justification is required.
With Putin, however, Russia is strenghtening an army. It is correct in this case, I think, to verbally remind your enemies of the threat they represent. E.g.Trump, in the US, has a strong discourse position to pull the US from conflict, because his supporters want "To make America great again", the world be damned.