Launched in 1998 as a joint venture of the International Centre for Missing & Exploited Children (ICMEC) and the US’s National Center for Missing & Exploited Children (NCMEC), the Global 
Missing Children’s Network (GMCN) is a network of countries that connect, share best practices, and disseminate information and images of missing children to improve the effectiveness of missing children investigations.
The Network has 22 member countries: Albania, Argentina, Australia, Belarus, Belgium, Brazil, Canada, Germany, Greece, Ireland, Italy, Mexico, the Netherlands, New Zealand, Poland, Romania, Russia, Serbia, South Africa, South Korea, Spain, the United Kingdom, and the US.
Every year on May 25, GMCN members pay respects to International Missing Children’s Day, honoring missing and abducted children while celebrating those who have been recovered. Following the 1979 disappearance of 6-year-old Etan Patz in New York City, May 25 was established as Missing Children’s Day in the US by President Ronald Reagan in 1983.
In 2001, the tribute spread worldwide. ICMEC coordinates the Help Bring Them Home Campaign in 22 countries, in conjunction with International Missing Children’s Day, to spotlight the issue of child abduction around the world, and to suggest to parents some steps they can take to protect their children.