The Tercios de Flandes were Spanish infantry units that served in the Spanish Netherlands during the sixteenth and seventeenth centuries, marching under the red saltire known as the Cross of Burgundy. Their hymn has become a shorthand online for old Spanish military pride, and Limón is the nickname for this short, chiptune-style 8-bit arrangement shared on soundboards. It spread through history memes and short video edits, where the retro sound turns a serious march into something playful, and it remains popular because it is instantly recognisable, easy to loop, and works as both tribute and parody.