How has Western equipment fared in the Ukrainian counteroffensive? Last I checked, the Leopard 2 and Challenger were relegated to backline support because they weren't effective on the offensive and that Ukraine is still struggling with air defence (given that Russia has been tossing around FABs with impunity). The real takeaway from this conflict is that artillery is king and that tanks/planes can't keep up in development pace with modern interceptors like drones and MANPADS. WW2's doctrine of large-scale combined arms and blitzkrieg tactics may be a thing of the past.