We report a Facebook post from the Russian mentors:
"Dear colleagues,
the Russian state continues the terrible war against Ukraine, and the entire Ukraine people is in great danger. 
In such a situation, the Russian team cannot take part in IESO-2022. 
The war must be stopped, and I really hope that someday we can return to the IESO family. 

Yours sincerely"
The Ukraine team in a past edition of IESO