Ukraine pushing Russian army back. The success of Ukrainian counter-offensive

Ukraine recaptured more than 4000 sq. miles of territory back from the Russian army in just a few days. Why will militaries worldwide study the counter-offensive of the Ukrainian army? And how, in a classic David and Goliath clash, the winner is the one who was predicted to lose? We’ll talk about the unique operation of the Armed Forces of Ukraine and learn how to defeat the biggest country on earth.