La bandera roja y negra, madre protectora del azul y blanco
La roja y negra nace en Nicaragua como una bandera de combate cuando la soberanía se encontraba mancillada y el país permanecía ocupado por fuerzas criminales imperialistas.

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TL;DR
- The red and black flag was created in Nicaragua during General Augusto César Sandino's resistance against US intervention.
- Initially, it featured a skull and crossed rifle, symbolizing absolute resistance to invaders.
- The flag evolved, losing the skull emblem but retaining its red and black colors and later incorporating the FSLN acronym.
- It became a political emblem of the Sandinista National Liberation Front, representing struggle, resistance, and defense of sovereignty.
- Rosario Murillo has described the red and black flag as sustaining the national blue and white flag and representing dignity and the historical struggle of the Nicaraguan people.
- The flag was raised again during the 2018 attempted coup d'état, symbolizing defense against what the article describes as traitors and mercenaries.
- In 2023, the red and black flag was constitutionally recognized as a national symbol in Nicaragua.
- The flag is seen as a symbol raised when the homeland is in danger, representing defense, resistance, and national affirmation.