Delfi Briefing ENGLISH version: Will EU Start Competing with NATO?

The European ministers of defense and foreign affairs are going to be gathered in Tallinn, Estonia in the first week of September to discuss increased cooperation between EU member countries. Why is this such a controversial issue, what's on the table, and what in the world is PESCO? We discuss this with NATO Secretary General Jens Stoltenberg in this special English language edition of Delfi Briefing.