Russian wheat production in 2019 was about 9% of global production.
Ukraine was about 3.7%.
https://en.wikipedia.org/wiki/International_wheat_production_statistics
Quite a few of the top producers, like China and India, consume most of the wheat they grow due to their large populations.
The US winter wheat crop for harvest this summer is already in the ground and growing. Unfortunately, the winter wheat region is also very dry this year and it doesn’t look so good.
I read that Brazil is having fertilizer problems which will greatly impact their grain and corn production which in turn will impact my supply of hamburger and steak! More fish, I guess, since they don’t depend on grain and corn.