From the BBC website:
"Ukrainian troops have advanced up to 30km inside Russia, in what has become the deepest and most significant incursion since Moscow began its full-scale invasion of Ukraine in February 2022."
Although I don't like commenting on political matters, it would seem correct that Russia has to accept this sort of action. Wars, in the end, do not resolve conflicts. Both sides need to agree to a compromise in which both sides feel winners.
I just wish a ceasefire could be agreed here and in Gaza leading to a peaceful resolution of both conflicts.