Philippine lawmakers have called for an investigation into sister-city agreements with China, reflecting broader global concerns about subnational influence and the need to balance local engagement with national security interests.

CPD Senior Research Specialist Sohaela Amiri argues for strengthening people-to-people ties between LA and Tehran.

Early literary portrayals of cities' global cultural relations may serve as a lens for modern city diplomacy scholarship.

Mark Kristmanson in dialogue with CPD Senior Research Specialist Sohaela Amiri on the value of sister city relationships during crisis.

CPD Senior Research Specialist Sohaela Amiri shares about the value of Los Angeles' proposed sister city relationship with Kyiv.

Principal Investigator:
Shearon Roberts, CPD Research Fellow 2021-23

Sister Cities International Chairman & San Antonio Mayor Ron Nirenberg shares views on how cities are adapting, forging new connections and joining the evolving playing field of international relations and diplomacy.

What's in a name? Shared values and mutual understanding, despite being worlds apart.