The general trend in Afghanistan is clear-cut: the overall security situation has consistently deteriorated since 2009, worsening dramatically since 2014. However, in the provinces of Afghanistan adjacent to Central Asia, the security situation has deteriorated even further than in Afghanistan as a whole. This report considers the range of options available to the Central Asian neighbors of Afghanistan (Tajikistan, Turkmenistan, and Uzbekistan) in responding to this growing threat, both unilaterally and in their bilateral engagement with actors in Afghanistan.
https://www.csis.org/analysis/afghanistan-and-its-central-asian-neighbors
The S-400 surface to air missile (SAM) system is one of Russia’s most important assets in Syria, as well as in Eastern Europe where the system’s presence in the Russian enclave of Kaliningrad gives the Kremlin powerful airspace denial options over the Baltic States and much of Poland. The S-400 system consists of wheeled vehicles including long-range surveillance radars, tracking and engagement radars, missile transportation and launch vehicles, and a command and control node.
https://rusi.org/publication/rusi-defence-systems/russia%E2%80%99s-air-defence-challenge-syria
https://www.gazeta.ru/politics/2017/06/29_a_10754123.shtml
The Atlantic Council promotes constructive leadership and engagement in international affairs based on the central role of the Atlantic Community in meeting global challenges. Founded in 1961, the Council provides an essential forum for navigating the dramatic shifts in economic and political influence that are shaping the twenty-first century by educating and galvanizing its uniquely influential, nonpartisan network of international political, business, and intellectual leaders. Through the papers we write, the ideas we promote, and the communities we build, the Council's ten regional centers and functional programs shape today's policy choices and foster transatlantic strategies to advance international security and global economic prosperity.
http://www.atlanticcouncil.org/blogs/ukrainealert/war-in-ukraine-2-0
http://www.rosbalt.ru/world/2017/06/28/1626726.html
https://www.gazeta.ru/politics/2017/06/28_a_10741715.shtml
https://www.gazeta.ru/army/2017/06/27/10741139.shtml
http://www.kasparov.ru/material.php?id=594FA2968E89C