Russia Ukraine war, page-184771

no support for that assertion ...because there is none !

in this index the higher the score the less corrupt, South Sudan , Somalia etc at the bottom with very low numbers
Ukraine scres 3 points better than russia - russia shown as 10% more corrupt than Ukraine - which is no surprise with putin and the oligarchs doing their thing
https://www.transparency.org/en/cpi/2021

then there is this one which ranks countries from LEAST to MOST corrupt - Ukraine agin better at 116 and russia 131 i the world with Somalia by cmparison 180 th .
https://en.wikipedia.org/wiki/Corruption_Perceptions_Index

now ....there is proof and this before Ukraines recent efforts .....the slovakian leaders comment was ridicuous

I awit anything tangible you have to support .....but not holding my breath because russia IS , easily , the most corrupt country in Europe .