Antimicrobial resistance (AMR) represents a major global threat across human, animal, plant food and environmental sectors, threatening the effective treatment of an ever-increasing range of infections caused by bacteria, parasites, viruses and fungi, resulting in prolonged illness and increased mortality, often felt hardest by the most vulnerable populations. AMR also endangers the sustainability of agri-food systems and food safety. Since 2010 there is a strong commitment from FAO, OIE and PAHO to fight AMR, working together to mitigate the risks in the interconnection among the human health, animal health and the environment. In this context, the organizations now joined forces in the implementation of the project ‘Working Together to Fight Antimicrobial Resistance’ to ensure a coherent “One Health” approach recognizing the multidimensionality and necessity of an intersectoral response that is needed to address the problem of AMR. The overall strategic objective of the three-year project (2020-22) supported and financed by the European Union (EU) is to contribute to tackle AMR through the implementation of National AMR Action Plans by working with seven Latin American partner countries: Argentina, Brazil, Chile, Colombia, Paraguay, Peru and Uruguay.