http://www.rbc.ru/newspaper/2017/04/25/58fe18c19a7947e0ae258b18
http://www.finanz.ru/novosti/aktsii/putin-prizval-uvelichit-proizvodstvo-oruzhiya-1001946817
Total world military expenditure rose to $1686 billion in 2016, an increase of 0.4 per cent in real terms from 2015, according to new figures from the Stockholm International Peace Research Institute (SIPRI).
https://www.sipri.org/media/press-release/2017/world-military-spending-increases-usa-and-europe
http://ru.krymr.com/a/28448702.html
http://ru.krymr.com/a/28447160.html
http://www.ng.ru/politics/2017-04-24/2_6980_avianosec.html
https://www.gazeta.ru/army/2017/04/24/10641629.shtml
http://expert.ru/expert/2017/17/est-giperzvuk/
https://www.gazeta.ru/comments/2017/04/24_e_10641653.shtml
http://ru.krymr.com/a/28444993.html