The Northern Triangle of Central America faces many challenges, including violence and crime. Young people are the most common victims as well as perpetrators of violence, especially gang-related violence. That is why Glasswing International is committed to providing children, adolescents, and youth with tools to prevent violence and opportunities to help them and their communities thrive. Glasswing International is a non-profit organization that was founded in El Salvador in 2007 to address the root causes and consequences of violence and poverty through education and health programs that empower youth and communities, and strengthen public systems. Today, Glasswing works in 10 countries throughout Latin America and the Caribbean. Since its inception, it has impacted more than 398,000 participants through its education interventions, whose main effects are reflected in young people's relationships, self-esteem, and academic performance. This article discusses the delivery of three different interventions: (1) Glasswing's regular After School Program (ASP); (2) the regular ASP plus a character strengths development (CSD) curriculum; and (3) the regular ASP plus a mindfulness curriculum.