This thesis examines how the United States (US) and European Union (EU) have developed foreign aid programs to further their security goals. The securitization of foreign aid has evolved as security threats have changed over time, and the evolution of US and EU aid policies has raised the question of how security objectives are incorporated into development policies. This thesis demonstrates that the EU has securitized foreign aid by briefly exploring the case of securitized aid in the US, tracing institutional changes within the EU, and explaining specific EU instruments and partnerships that securitize aid. As the international area continues to intensify and become more complex, the EU must strengthen its current tools or create more vehicles to carry out security and foreign aid priorities.