transition has been hit. by the russian military. and this comes amid word that russian troops are massing in eastern ukraine and a senior ukrainian official says the offense of the donbas region has already started. the latest satellite images show i believe in eight mile-long military convoy east of the second biggest city, kharkiv. according to ukraine s offense intelligence chief, russian troops have regrouped for a renewed assault on that city. president zelenskyy is well aware of the risk as russia escalates its attack. here is. [interpreter] i don t want to make myself out to be a hero, he said. i love my family. i want to live many more years. but choosing between running or being with my people, of course i m ready to give my life for my country. the white house national security adviser says the united states is leading an effort to aid ukraine that is both unprecedented in scope as well as speed.