As the Battle of Britain looms, Hope Flies on Eagle's Wings

From Master of Alternate History Harry Turtledove

As Britain faces the full fury of the Nazi war machine, hope comes in the form of American volunteers called the Eagle Squadrons. As these units join their RAF cousins during the Battle of Britain, famous woman aviator Amelia Earhart (who survived her world-circling flight) emerges as a rallying point for those willing to stand against fascism.