My first thoughts would be an inside false flag job.
On second thought, maybe Russia is not as secure as one is led to believe.
I’m still trying to get my head around how the Israelis did not see an attack coming from the North.
Sadly our shell of sovereign republic no longer has borders.
I thought Israel and Russia did.
Russia has been suffering a two year spate of sabotage attacks from Ukraine. That indicates a rather poor state of internal security.