2:32 AM ET

Amosov said he will stay in his native Ukraine todefend this country against Russia.

Amosov said in a video that he took his family to a "safe zone" but has now returned to his home country of Ukraine. Amosov spoke Ukrainian in the video and the English translation of his comments was confirmed by his manager.

Amosov said that he took his family to the safe and that many would think he ran away. I will defend this country with what I have. I love our country. Russia came to our house and started a war, many people are dying.

We are in a war. I can't understand people who don't believe in Russian troops entering Ukraine. I hear it, but I see it with my own eyes. Terrible things are happening here.

Wladimir and Vitali said they would defend against the invasion. Vitali is the mayor of Kyiv, and Wladimir enlisted in the reserve army as the country braced for an attack.

A former three-division champion has joined a territorial defense battalion.

Amosov is considered to be one of the best up-and-coming MMA fighters in the world. He won the title via unanimous decision. He has a perfect record in the competition.

Amosov is scheduled to defend his title against Michael Page on May 13 at Bellator London.