Professor Milena Sterio conducted an online expert training for a cohort of Ukrainian prosecutors on prosecuting environmental crimes, as ecocide or as war crimes. The training was organized by the International Bar Association, and it took place on March 27th. Professor Sterio focused on the definition of the war crime of destruction against the environment under the Rome Statute of the International Criminal Court, as well as on the development of the crime of ecocide under national law as well as international criminal law. Professor Sterio has already conducted similar trainings in person with different cohorts of Ukrainian prosecutors.