NATO and European Union leaders will sign a declaration on an enhanced cooperation during the summit in July, NATO Secretary General Jens Stoltenberg said in a statement. 

“NATO and EU leaders plan to sign a new joint declaration in July to further enhance their level of cooperation,” Jens Stoltenberg said at NATO Defense Ministers meeting on Friday.

The first declaration, signed in Warsaw in 2016, was expected to ensure the pooling of EU and NATO resources to respond to common challenges, including migration, hybrid threats or cyberattacks.