WWII, Russo-Ukrainian War
This request is ridicules. What Ukraine suppose to do here? This country is under attack by Russians. The main goal of Putin is a genocide of Ukrainian population. When Stalin and Hitler turned apart Poland at 1939, would you ask Poland to stop?
Source: Start of WWII en.wikipedia.org/wiki/World_War_II#War_breaks_out_in_Europe_(1939%E2%80%9340), Russian nazy en.wikipedia.org/wiki/Russo-Ukrainian_War