From 2021 until 2024, Sarah Charles led USAID's Bureau for Humanitarian Assistance (BHA), the U.S. government lead for international disaster response. During her tenure, Ms. Charles led critical U.S. humanitarian responses, including: the global food security crisis, Russia's invasion of Ukraine, historic drought and conflict in the Horn of Africa, civil war in Sudan, and complex emergencies in Haiti, Pakistan, Türkiye, and Syria. Previously, she served for four years on the Obama National Security Council (NSC) Staff and worked for the International Rescue Committee (IRC) in Washington, and overseas in Africa and South Asia.