ian pannell joining us tonight from kyiv. and ian, we noted president biden today saying the u.s. will supply military assistance to ukraine as long as the russian assaults and atrocities continue and other top officials are suggesting this could last for some time now. >> reporter: yeah, i think that's right. and i don't think there's any telling how long it is fog to last. i mean, the fighting in the east is escalating. thousands have been killed. millions forced from their homes and a peace process that looks dead in the water. i think expect this war to go on for months at best, possibly into next year. and it's going to test the ukrainians above all, but also u.s. and nato resolve. whit? >> ian, thank you. >>> and president biden now working to convince congress to approve his $33 billion pledge to ukraine, so, let's go to washington now and our senior white house correspondent mary bruce. mary, congressional leaders sounding on mystic today, but still some challenges ahead. >> reporter: the president admitted himself today this is a lot of money. it would mean the u.s. would

ian pannell with us again tonight fromkey. and ian, i want to go back to the american kill in the ukraine. we heard from the president late today for the first time. >> reporter: yeah, that's right, whit, the president calling the death of american willy joseph cancel very sad. and u.s. officials doubling down tonight, urging americans once again not to travel to ukraine, as russia ramps up its attacks in the east and the south of the country. whit? >> ian, thank you. >>> tonight there is news on the long awaited covid vaccine for the youngest children, those under 5 years old. the fda announcing meetings in june with authorization expects some time that month, and dr. anthony fauci weighing in on the possibility of an updated and longer-lasting vaccine. here's abc's erielle reshef. >> reporter: for millions of parents of children under five, tonight a potential timeline for the fda's review of the pfizer and moderna vaccines. an advisory panel is now planning to meet on june 8th 21st and 22nd, with authorization expected some

our senior foreign correspondent ian pannell is on the scene i kyiv. morning, ian. >> reporter: yeah, good morning, george. we're actually on the scene of one of those five missiles believed to have struck kyiv around 7:00, 8:00 p.m. in the evening. now, the russians say what they were targeting was a factory that was making rockets. now, there is a large factory complex over here which we can't show you, the windows have been blown out. there is some damage there. but this is clearly a residential apartment. we have been inside and met some of the people living there, and they described the moments that the rocket struck. an american fighting alongside ukrainian troops is amongst the casualties of the war. willy joseph cancel's wife confirming his death to abc news saying, my husband went there wanting to help people. he'd always felt that that was his main mission in life. overnight, russia attacking kyiv launching missiles into the ukrainian capital. these videos circulating online show the moment the missiles slammed into buildings. this is the ran

ian pannell back in ukraine's capital tonight. mary bruce at the white house. >>> back her

ian pannell is in ukraine. good morning, ian. >> reporter: good morning, george.redibly three weeks ago when last in ukraine this area was under the control of russian forces. today, of course, it's now held by the ukrainians. the russians have left the area but the ukrainians have to clear out the damage. what we're watching in the background, demining teams trying to make the homes and buildings safe for people to come back to their villages. they're collecting grenade, anti-tank and personnel mines and rockets left on the ground and some as booby traps to try to capture people as they return home and this comes as we're seeing russia's stiffest response yet to that support for the ukrainian support down here on the ground. this morning, the pentagon saying more than half of 90 u.s. howitzers for ukraine have arrived. it's weapon systems like these american artillery guns that angers russia. president putin with a stark warning to western nations who intervene in ukraine. while not directly mentioning nuclear weapons -- [speaking foreign language] -- he hinted a