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HomeDiplomatic Chess or Checkers: What Is ‘Persona Non Grata’?

Diplomatic Chess or Checkers: What Is ‘Persona Non Grata’?

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The Diplomatic Diary
  • Diplomacy Through the TV Screen During U.N. Leaders Week
  • Lifting the Curtain on Economic and Commercial Diplomacy
  • Political Tradecraft: The Main Instrument in the Diplomacy Toolbox
  • Running a Mini-Government at Diplomatic Missions Abroad
  • How the Lack of Diplomatic Doctrine Impairs Statecraft
  • Diplomacy’s Hallmark: ‘Patient Accumulation of Partial Successes’

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Featured Programs

Summer Diplomatic Academy
8–30 July 2025

One-Year Certificate in International Diplomacy
22 September 2025 — 8 May 2026
Featured Instructors

Ambassador
Daniel Fried

Fried is a former assistant secretary of state for European and Eurasian affairs, senior director for European affairs on the National Security Council and ambassador to Poland. He spent 40 years in the U.S. Foreign Service.

Ambassador
Janice Jacobs

Jacobs is a former assistant secretary of state for consular affairs and ambassador to Senegal and Guinea-Bissau. During her 34-year Foreign Service career, she also served in the Dominican Republic, Ecuador, Egypt, Ethiopia, France, Mexico, Nigeria and Thailand.

Ambassador
Charles Ray

Ray is a former ambassador to Zimbabwe and Cambodia, deputy chief of mission in Sierra Leone, and consul-general in Ho Chi Minh City, Vietnam. His 30 years in the Foreign Service were preceded by 20 years in the U.S. Army.

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  • About Us
  • Programs
    • One-Year Certificate in International Diplomacy
    • Summer Diplomatic Academy
    • Executive Diplomacy Training
    • Custom Diplomacy Programs
    • Session Previews
  • Textbook
  • Testimonials
  • Contact
  • Diplomatic Diary