Between the 1960s and 1990s, more than fifty designers worked at OSPAAAL. Based in Cuba, they made magazines and posters that were sent around the world. Their aim was to promote radical political ideas. Many of their posters celebrate socialist revolutions and liberation movements from the Global South.

This design promotes 26 July as a day of solidarity with the Cuban Revolution. The revolutionary 26th of July Movement led by Fidel Castro took power in Cuba in 1959.