The fans of Union Berlin, also known as Die Eisernen, are not just supporters; they are a vibrant community defined by their deeply rooted traditions and rituals. Every home game turns into a celebration, with anticipation palpable long before the whistle blows. The journey to Stadion An der Alten Försterei is often a communal experience, as fans gather in the streets of Berlin to rally behind their team. Singing and choreographed displays play a central role, strengthening the bond among supporters and with the club itself.

Inside the stadium, the atmosphere is unparalleled. Fans, often clad in red and white, create an impressive backdrop with their flags and banners. Especially during the derbies against Hertha BSC, the passion of Union supporters shines in all its glory. The rivalry transcends sport, deeply rooted in the history of Berlin and the two clubs. When the teams clash, the stadium is filled with deafening noise, echoing into the surrounding neighborhoods. It's not just a match; it's a celebration of emotions, rivalry, and community.

One notable ritual is the singing of the "Eisenbahnerlied" before every home game. This song, reflecting the history and values of Union Berlin, unites the fans and allows them to feel the connection to their club. The fact that many supporters have remained loyal to the club across generations enhances the sense of belonging and pride.

Another aspect of the fan culture is the remarkable support fans show their players. Regardless of the performance on the pitch, supporters stand firmly behind their team. This is especially evident in tough times, as fans express their support through chants and banners. This loyalty creates a special atmosphere that motivates players and contributes to making the stadium one of the most feared venues for opposing teams.

The derby atmosphere between Union and Hertha is an experience not to be missed. The intensity of the matches, combined with the passion of the fans and the unique rituals, turns these encounters into an unmatched spectacle in German football. It’s not just a game; it’s a celebration of the culture and identity of Die Eisernen, reflected in every corner of the stadium. The fans are the heart of Union Berlin, and their rituals and traditions ensure that the club is not just a football team but a family.