To put it mildly, the current system of international security and European security in particular doesn't work any longer. Germany's Foreign Minister Frank-Walter Steinmeier said, that "European security is at risk unless a new arms control agreement is in force". Almost every European country admits this fact either. But it is far easier to admit than to take real actions. The international security will remain a dream unless a new system is developed.
The fighting that broke out in the Karabakh conflict zone in early April 2016 was the heaviest since the 1994 ceasefire agreement between the belligerent sides, Armenia and Azerbaijan. Part of the long-lasting Karabakh war, the recent clashes, in which the warring parties used heavy weapons took the lives of hundreds of combatants and civilians. The conflict continued for four days and ended with ceasefire.