https://www.gazeta.ru/army/2019/02/01/12157975.shtml
https://www.kommersant.ru/doc/3873206
https://www.eurointegration.com.ua/articles/2019/02/1/7092341/
https://www.bbc.com/russian/features-47043671
https://www.gazeta.ru/army/2019/02/01/12158053.shtml
https://www.kommersant.ru/doc/3868367
https://republic.ru/posts/92952
Russia has expanded deployment of a missile system the U.S. says violates a 1987 treaty on intermediate-range nuclear forces, widening the differences with Washington over a pact the U.S. is expected to exit on Saturday, Western officials said.