EU vs Russia

https://www.thoughtco.com/the-history-of-the-european-union-1221595
https://en.wikipedia.org/wiki/European_Union
https://en.wikipedia.org/wiki/Maastricht_Treaty
https://en.wikipedia.org/wiki/Economy_of_the_European_Union
https://en.wikipedia.org/wiki/Military_of_the_European_Union
http://www.bbc.com/news/uk-politics-32810887
https://en.wikipedia.org/wiki/Russia%E2%80%93European_Union_relations
http://www.businessinsider.com/nine-nations-have-nukes--heres-how-many-each-country-has-2014-6
https://www.globalzero.org/blog/how-many-nukes-would-it-take-render-earth-uninhabitable
http://www.telegraph.co.uk/news/2016/12/23/without-trump-putin-building-many-nuclear-weapons-world-could/
http://www.therichest.com/rich-list/the-biggest/top-10-most-sophisticated-main-battle-tanks/
https://www.quora.com/Military-Technology-What-is-the-best-fighter-jet-for-air-to-air-combat
International Institute for Strategic Studies (IISS)
https://www.bea.gov/newsreleases/national/gdp/gdpnewsrelease.htm
http://www.imf.org
http://www.citizensinformation.ie/en/government_in_ireland/european_government/european_union.html
https://europa.eu/european-union/about-eu/countries/member-countries_en
http://www.eda.europa.eu/docs/default-source/documents/eda-defencedata-2014-final
https://www.defense.gov/News/News-Releases/News-Release-View/Article/652687/department-of-defense-dod-releases-fiscal-year-2017-presidents-budget-proposal
https://www.census.gov/popclock/
http://www.eur.army.mil/SaberStrike/
http://www.eur.army.mil/7atc/
http://www.eur.army.mil/atlanticresolve/
http://www.globalfirepower.com/
http://www.cnn.com/2016/05/11/politics/nato-missile-defense-romania-poland/
https://news.usni.org/2016/05/12/aegis-ashore-site-in-romania-declared-operational
http://www.army-technology.com/projects/leopard/
https://www.egnos-portal.eu/discover-egnos/about-egnos/what-gnss
https://www.gsa.europa.eu/