SISTER CITIES INTERNATIONAL. FALL 2025/SPRING 2026 INTERNSHIP. DESCRIPTION AND APPLICATION PROCESS. . Internship Summary. Sister Cities International is seeking. 3 interns. for the 2025-2026 academic year (6 months minimum). Areas of expertise include membership, marketing, operations, events, and programs. Although interns will have their designated tasks, they are encouraged and expected to offer support in other departments when needed. Intern...