Baltic Black Ops — Stephen Leather

The twentieth century is drawing to a close and the Russians are up to all sorts of dirty tricks in Lithuania and Kaliningrad. MI6 decide to fight fire with fire and send in a crack SAS team led by Dan 'Spider' Shepherd. Their mission - to create chaos in the Baltic region through sabotage, assassination and black ops. But the Russians aren't going to give up without a fight, and soon the SAS team wonder if they might have bitten off more than they can chew.