Ukraine is a very corrupt country, all things considered. How exactly is American weapons being diverted from Ukraine (to, say, the black market) fake news?
So what things did you consider? How do you know Ukraine "is a very corrupt country"?
Ever since the Biden administration, I cringe when we accuse a foreign nation of corruption. Why worry about US weaponry availability on the black market when we left billions worth in the hands of the Taliban? You think they kept it in a piggy bank?