evidence: To achieve compliance with the revised World Health Organization International Health Regulations (IHR 2005), countries must be able to rapidly prevent, detect, and respond to public health threats. Most nations, however, remain unprepared to manage and control complex health emergencies, whether due to natural disasters, emerging infectious disease outbreaks, or the inadvertent or intentional release of highly pathogenic organisms. The US Centers for Disease Control and Prevention (CDC) works with countries and partners to build and strengthen global health security preparedness so they can quickly respond to public health crises. This report highlights selected CDC global health protection platform accomplishments that help mitigate global health threats and build core, cross-cutting capacity to identify and contain disease outbreaks at their source. CDC contributions support country efforts to achieve IHR 2005 compliance, contribute to the international framework for countering infectious disease crises, and enhance health security for Americans and populations around the world. [...] Because of the recognized need to achieve IHR 2005 compliance worldwide to ensure health security, increasing number of countries that have made GHSA commitments, and early progress achieved with GHSA implementation, the world is becoming better prepared to respond to threats. CDC is helping advance health security through its global health protection platform. More work is needed and momentum in GHSA implementation needs to be sustained so Americans and citizens around the world will have enhanced protection from newly emerging infectious diseases and other health threats.