EU foreign policy chief Federica Mogherini (C) poses with foreign and defence ministers from 23 EU member states after they signed the notification on Permanent Structure Cooperation (PESCO).  Emmanuel Dunand/ EPA
EU foreign policy chief Federica Mogherini (C) poses with foreign and defence ministers from 23 EU member states after they signed the notification on Permanent Structure Cooperation (PESCO). EmmanueShow more

European Union signs landmark new defence pact