The Sealand meme centers around the Principality of Sealand, a self-declared micronation located on a former WWII sea fort in the North Sea. While not officially recognized by established nations, Sealand has gained a massive cult following online for its defiant spirit and unique history of sovereignty battles. In the world of internet culture, particularly within the Polandball and Countryballs communities, Sealand is often portrayed as a tiny, scrappy character desperate for recognition or fiercely protecting its territory against intruders. The meme is frequently used to represent small entities with huge egos, niche hobbies that people take very seriously, or the general concept of declaring one's own rules regardless of external authority.