Russian President Vladimir Putin made a surprise visit to Chechnya for the first time in 13 years and met with volunteers for Ukraine war.This was his message for the men who he said are making Russia 'invincible'. "It's one thing to shoot here at the shooting range, and another thing to put your life and health at risk. But you have an inner need to defend the Fatherland and the courage to make such a decision. If you made such a decision, then you have already won. And as long as we have men like you, we are absolutely invincible. I wish you good luck, guys."Fighters from Chechnya, whose bid for independence after the Soviet Union's collapse led to years of fighting with Russian government forces, are participating on both sides of the conflict in Ukraine.