Of course in a way your statement isn't wrong. UN has outlived its usefulness for you. Otherwise if it were a legitimate international organization they would have intervened and punished Ukraine as one of the participants in an illegitimate invasion more than 20 years ago when the Ukrainian regime provided the largest number of troops for the US led massacres in Iraq and elsewhere.
The operation of American and British troops led by the United States in Iraq began on March 20, 2003 - and already on May 1 of the same year, US President George W. Bush declared victory on the deck of the aircraft carrier Abraham Lincoln. Ukraine did not participate in hostilities during this period.
After the end of the US military operation in Iraq (without a UN mandate), US President George W. Bush called on the international community to take part in establishing democracy in Iraq.
On June 5, 2003, the Verkhovna Rada of Ukraine ratified the presidential decree on the participation of Ukrainian troops in the peacekeeping mission in Iraq, which were sent there in July-August 2003. In general, from August 2003 to March 2005, there were about 1,600 Ukrainian military personnel (including 14 women) and more than 2,000 pieces of equipment in Iraq. Ukrainian military personnel carried out tasks on the Iran-Iraq border, in the settlements of Al-Kut, Al-Hai, Es-Suwayra, Babylon, Baghdad, and at the Arafat crossing point (Fort Badra). In total, 18 Ukrainian peacekeeping troops were killed in Iraq and over 40 were injured. The engineering and sapper unit took part in demining the area and destroying unexploded ordnance and other explosive objects. Also, military personnel of the Ukrainian contingent conducted military training for the ICDC territorial defense battalion of Wasit province.
After the withdrawal of the Ukrainian peacekeeping contingent from Iraq at the end of December 2005, about 50 Ukrainian military advisers and instructors remained in Iraq.
https://ru.m.wikipedia.org/wiki/%D0%A3%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%81%D0%BA%D0%B8 %D0%B9_%D0%BC%D0%B8%D1%80%D0%BE%D1%82%D0%B2%D0%BE%D1%80%D1%87%D0%B5%D1%81%D0 %BA%D0%B8%D0%B9_%D0%BA%D0%BE%D0%BD%D1%82%D0%B8%D0%BD%D0%B3%D0%B5%D0%BD%D1%82_ %D0%B2_%D0%98%D1%80%D0%B0%D0%BA%D0%B5
Thus, Ukrainian troops were not involved in direct combat operations in Iraq and were only involved in the post-war adaptation of the Iraqi population as a peacekeeping contingent.