As a leader in global nutrition and development, the U.S. Government recognizes the critical role that the 1,000-day window between pregnancy and a child’s second birthday has on child growth, cognitive development, and disease prevention. In honor of World Breastfeeding Week and National Breastfeeding Month, the U.S. Government Global Nutrition Coordination Plan hosted an event in Washington DC on August 2019 to bring together U.S. Government departments and agencies, implementing partners, external stakeholders, civil society, and other breastfeeding advocates. Participants discussed skilled support for breastfeeding as well as U.S. Government investments supporting families to breastfeed in the workplace and in communities.