CSIS Summer 2026 Internship in the United States: Paid Global Policy Internship Opportunities at the Center for Strategic and International Studies

If you are looking for a prestigious, paid international internship opportunity in global policy, security studies, or international development, the Center for Strategic and International Studies (CSIS) Summer 2026 Internship Program offers one of the most competitive and career-defining experiences available today. This comprehensive guide provides everything you need to know—from eligibility and benefits to responsibilities, deadlines, and how to apply successfully.