In the hall of the building where my office is, the North Academic Center, there's a memorial wall for alumni of the City College who fought in different wars. Among the plaques, this one with the Guernica stood out to me, until I saw that it was dedicated to the alumni, students and teachers who died fighting against fascism in Spain.
Unfortunately, many of the Spanish people who fought alongside them are still buried in anonymous mass graves in forgotten Spanish roadsides. It's the worst shame in current Spain that there still are spiteful, stone-hearted Spanish people who deny these victims of fascism the memory and homage of their friends and family.