Operation Juniper Shield, formerly known as Operation Enduring Freedom – Trans Sahara (OEF-TS), is the military operation conducted by the United States and partner nations in the Saharan and Sahel regions of Africa, consisting of counterterrorism efforts and policing of arms and drug trafficking across central Africa. It is part of the Global War on Terrorism (GWOT). The other OEF mission in Africa is Operation Enduring Freedom – Horn of Africa (OEF-HOA).
Congress approved $500 million for the Trans-Saharan Counterterrorism Initiative (TSCTI) over six years to support countries involved in counterterrorism against alleged threats of al-Qaeda operating in African countries, primarily Algeria, Chad, Mali, Mauritania, Niger, Senegal, Nigeria, and Morocco. This program builds upon the former Pan Sahel Initiative (PSI), which concluded in December 2004 and focused on weapon and drug trafficking, as well as counterterrorism. TSCTI has both military and non-military components to it. OEF-TS is the military component of the program. Civil affairs elements include USAID educational efforts, airport security, Department of the Treasury, and State Department efforts.