Since 2013 a merciless civil war rages in South Sudan. Control Arms wanted to start a petition addressing the United Nations. Its goal: an arms embargo. But traditional petitions find less and less supporters. That's why we thought of a new way to raise our voice. With the help of an interactive tool you could stop tanks and soldiers by simply raising your voice – with a loud yell. Every yell was transformed into a three dimensional sound graph, that destroyed tanks and vehicles. The recording of every yell was embedded into a shareable video and the petition was handed over to the UN in July 2015 as a digital sound file.