Ukraine is fighting a bloody attrition land war in Russia. They are currently losing and will likely fair worse as time goes on.
Mind you Ukraine could have prevented all of this if they had decided not to break the Minsk agreement which would have ended the conflict in Donbas. Instead the US and EU used it to buy for time so they could further arm Ukraine for war with Russia.
This conflict has been an unmitigated disaster for the people of Ukraine. Entire generation of youth killed or crippled. Millions fled the country and may never return.