The annual conference, first held in 2014, is a major international gathering focused on security. It is organised by the Casimir Pulaski Foundation, a Warsaw-based think tank.
This year's participants included Ukrainian investigative journalist and human rights activist Maria Tomak.
She took part in a panel discussion focused on "Ukraine and the Human Cost of War."
Marcin Matuszewski spoke with her during the conference.
Click on the audio player above to hear the interview