The term "Black Cross" can refer to various symbols and organizations, but one notable use is by the Black Cross Nurses, a group formed in the early 20th century to provide medical assistance to political prisoners and those affected by war. They aimed to offer humanitarian aid and support to marginalized communities, often in conflict zones. Another context for "Black Cross" is its association with the Black Cross symbol used by some anarchist and anti-fascist groups. This symbol represents solidarity and resistance against oppression, often appearing in protests and demonstrations advocating for social justice and equality.