Globally, in 2015, more than 400 million people lacked at least one of seven essential health services like family planning or immunization, and many people who accessed services faced significant financial hardship because of the costs involved. The Advance Universal Health Coverage partnership was established to support countries to build an evidence base for health system reforms, provide technical assistance as the reforms were implemented, unlock financing for health, and create and share knowledge that could be used by other countries looking to improve the quality and coverage of health services. Since 2015, Advance UHC has helped to mobilize over $7.7 billion in new health sector investments in the East Asia and Pacific region.