diffident
Whilst you are quite right in that view, I see little evidence of most leaders taking serious action against leaders like Lukashenko or Putin. Tinkering at the edges seems to be the norm, with a few exepctions, like the Polies.
The PM in the UK had to be leaned on hard by back benchers and commitees simply to bin the idea of Huwawei in our phone networks and his record against Putin is pretty weak. He and others will put larger economic interests at the fore and Putin et al know it.