Complex sentence: Ola Mildred Rexroat, an Oglala Sioux woman from Pine Ridge Indian Reservation, South Dakota, was the only Native American woman in the WASP; she survived the war and later joined the Air Force.
Split into simpler sentences: Ola Mildred Rexroat, an Oglala Sioux woman from the Pine Ridge Indian Reservation, South Dakota, was the only Native American woman in the WASP. She survived the war and later joined the Air Force.