Olympic medalist from Ukraine joins fight against Russia: "We'll do what is needed"

A little over two weeks ago, Olympic medalist Stanislav Horuna was the captain of Ukraine's national karate team. Now, in his words, he's just an "ordinary soldier" fighting in a war against Russia.

"Everyday nonstop the night before the news, we are checking if our friends and family members are okay, if somebody needs something... So, no time to complain or time to reconsider your life," Horuna told CBS News from his hometown of Lviv. "That's just how it is. It's a critical moment."

Horuna, who won bronze in the Tokyo Games last summer, is among the many Ukrainian athletes who have dropped everything in their lives to fight off the Russian invasion.