EU High Representative for Foreign Affairs and Security Policy Callas: Brexit has also left a lot of trauma for the EU. So negotiations won't be that easy. But I think we can go step by step, and I believe if we stick together, we'll be much stronger, both economically and security-wise.

EU High Representative for Foreign Affairs and Security Policy Callas: Brexit has also left a lot of trauma for the EU. So negotiations won't be that easy. But I think we can go step by step, and I believe if we stick together, we'll be much stronger, both economically and security-wise.