the car. we could leave, the other soldiers can t. they re collecting, pr preserving and analyzing possible war crimes. the invasion has said 2.5 million people crossed the border since the invasion began. some aide workers say they re exhausted and lacking resources. we re joined from madika near the country s border with ukraine. selma? reporter: max, this is the pedestrian border crossing. people come here with only what they can carry with them. you can see the crossing here. families are coming across rolling their bags. i ll show you what greets them.