http://www.ecfr.eu/article/commentary_the_brexit_threat_to_britains_defence_industry
http://www.ecfr.eu/page/-/Keeping_Europe_Safe_After_Brexit2.pdf
http://blogs.lse.ac.uk/brexit/2018/05/15/switzerland-wanted-more-immigration-controls-but-economic-self-interest-will-probably-prevail/
https://ukandeu.ac.uk/northern-irelands-vicious-cycle-of-governance-failure/