https://www.kommersant.ru/doc/3578218
https://www.kommersant.ru/doc/3578497
Divided interests among EU states will likely impede a uniform response toward Russia over the nerve attack on Sergei Skripal in the UK.
https://www.csis.org/analysis/responding-russia-deterring-russian-cyber-and-grey-zone-activities
https://ru.krymr.com/a/29109635.html
http://www.ng.ru/economics/2018-03-19/1_7193_tors.html
https://www.rbc.ru/newspaper/2018/03/19/5aabb72c9a7947688603c588
https://www.kommersant.ru/doc/3559241
http://www.ng.ru/week/2018-03-18/7_7192_world.html
http://www.kasparov.ru/material.php?id=5AAEBFAABFCF5