About Casa Alianza Mexico: For nearly 30 years, Casa Alianza Mexico has provided care and protection for boys and girls ages 12 to 18 who have experienced social abandonment, including abuse, neglect, violence, addiction, sexual exploitation and human trafficking. The rising tide of violence and instability in Mexico over recent years has made their work even more urgent, as has the ongoing influx of unaccompanied migrant children from Central America into Mexico.