green corridors will be open there today. if all goes as plan to cease-fire and evacuation also take place, they could already be under way. sumy one of the first humanitarian corridors agreed to by russia and ukraine earlier this week. it s also been the scene of heavy shelling and civilian casualties. now there is no there is growing concern for ukrainian civilians, of course, as the desperation and devastation on the ground worsens. for some, this isn t the first time fleeing a conflict. cnn s anderson cooper met one family who has had to abandon a home twice now because of war. reporter: it s good to know there are still some children in ukraine who have no idea the war has come. can you make the sound of a pigeon? in lviv, a little girl named eva delights in feeding pigeons in the park. she is 3 years old, but this is