I don't understand how to interpret these phylogenetic trees for the

100 Yellow fever virus strain ES-505 Brazil201763 Yellow fever virus strain ES-504 Brazil201784 _ Yellow fever virus strain Bel1622493 Brazil 20005024 Yellow fever virus strain TVP11767 Trinidad 2009- Yellow fever virus isolate AR350397 Brazi1979SOUTH AMERICA I100Yelow fever virus isolate V-528A Colombia 1979100Yelow fever virus strain Bel-1423602 Brazil198498 - Yellow fever virus strain Bel 1463676 Brazil1987- Yelow fever virus strain 88 Bolivia1999Yellow fever virus isolate 1362 Peru1977SOUTH AMERICA II99 L Yellow fever virus isolate 1914-81 Ecuador198157 Yellow fever virus strain 85-82H Ivory Coast 1982100100 Yelow fever virus isolate BA-55 Nigeria 1986Yelow fever virus strain Ara6734 Burkina Faso 1986WEST AFRICA IYellow fever virus strain Cotedivoire1973100 Yellow fever virus strain MK/ArD27797 Gambia197999L Yelow fever virus strain Ke/ArD25112 Senegal1977$9 Yelow fever virus strain Ivory Coast 199915 Yellow fever virus strain ArA 20628 Mali 198697Yellow fever virus strain Guinea200099 | Yelow fever virus strain Gambia 2001Yellow fever virus strain HD78359 Cameroon 1990WEST AFRICA IIYelow fever virus strain ArB5656 CAR197445Yelow fever virus strain Asibi Ghana 192799Yelow fever virus strain 788379 Trinidad 197963Yellow fever virus strain Ke/ArD149791 Senegal2000Yellow fever virus strain Ke/ArD99740 Senegal1993100 Yellow fever virus strain Angola 1971L Yelow fever virus isolate Cahama-C17 Angola 2016ANGOLA100- Yellow fever strain 7914 Kenya199310056-Yellow fever virus strain SSUDO3-01 Sudan 2003EAST AFRICAYelow fever virus strain Uganda 19489299- Yellow fever virus isolate DaHB1504 CAR1985- Yellow fever virus strain Uganda 2010Yellow fever virus strain Courna Ethiopia 1961EAST/CENTRAL AFRICA99 L Yellow fever virus isolate SE7445 Uganda 1964