http://www.independent.co.uk/news/world/europe/full-list-of-incidents-involving-russian-military-and-nato-since-march-2014-9851309.html
Putin has been bullying nations in Europe for quite some time now.
I’m gonna guess that in the 39 violations, no planes were shot down. That’s because an airspace violation is not sufficient reason for a violent reaction.
This was damn foolish of the Truks, serving no purpose other than enraging the Russians. Putin will get his revenge.