Further, the successful use of cyberwarfare by Russia, is considered the leading example of its kind.
And I haven't even mentioned Brexit, or hundreds of other campaigns to weaken western democracies.
It's pretty clear that Russia leads in this regard.
The invasions of Afghanistan and Iraq were worthless failures, and resulted in the loss of trillions of US dollars that could have gone to building American infrastructure, funding universal healthcare and education, and improving the lives of average citizens.
These invasions fundamentally weakened the US at home and abroad. They did not serve the interests of "empire" at all.