Images of former heavyweight boxing champion Vitali Klitschko—who is also the mayor of Ukraine’s capital city, Kyiv—in battle fatigue and loading a machine gun to defend his country from Russian aggression—have gone vital.

Images of Klitschko with a machine gun were posted on social media by boxinginsider.com late on Friday night, and captioned it, “Vitali Klitschko Shown Fully Engaged In Military Defense Of Ukraine”.