general, eric holder, joins me live at this hour. new details of emergency landing by an airplane passenger incapacitated. we are going inside the harrowing ordeal. we want to welcome our viewers in the united states and around the world, i am wolf blitzer and you are in the situation room. tonight ukraine is claiming several victories in the hotly contested terrains around kharkiv. a major city miles from the russian border. cnn s scott mechclean is on the ground for us. oren liebermann is joining us live from the pentagon with a new u.s. assessment from top u.s. defense officials. let s begin with scott for more development near kharkiv. this is highly important territory and ukraine now says it has the upper hand. reporter: exactly, wolf. they re starting to take back towns and villages outside of kharkiv. some places they are miles away from the russian border, a border ukrainians say the russians amassed a huge amount of troops, 20 battalion groups which is about