For 10 points, name this volunteer group who fought in the Spanish Civil War.
In 1939, Frank Murphy indicted people for their work recruiting members of this group. Carmelo Delgado Delgado died with this group, while future Hollywood Ten member Alvah Bessie was a member. Their anthem was the "Valley of Jarama" and former members were not considered for officer commissions during World War II. For 10 points, name this volunteer group who fought in the Spanish Civil War.
In 1939, Frank Murphy indicted people for their work recruiting members of this group.
Abraham Lincoln Brigade