United Nations Operation in the Congo (ONUC) (1960–1964)

1. Katanga secession sparks UN involvement

   Jul 11, 1960Labels: Katanga, Mo se

   • Britannica

2. UN Security Council authorizes ONUC (Resolution 143)

   Jul 14, 1960Labels: UN Security, Resolution 143

   • UN Digital
   • UN Peacekeeping

3. First ONUC troops arrive in Congo

   Jul 15, 1960Labels: ONUC troops, L opoldville

   • UN Peacekeeping
   • ONUC Wiki

4. Security Council reinforces mandate (Resolution 145)

   Jul 22, 1960Labels: UN Security, Resolution 145

   • UN Digital
   • UNSCR 145

5. Resolution 146 addresses Katanga withdrawals

   Aug 9, 1960Labels: Resolution 146, Katanga

   • UNSCR 146
   • UN Peacekeeping

6. South Kasai secession complicates ONUC mission

   Aug 9, 1960Labels: South Kasai, Albert Kalonji

   • FARDC Wiki

7. Lumumba killed; Security Council expands force authority (Resolution 161)

   Feb 21, 1961Labels: Patrice Lumumba, Resolution 161

   • UNSCR 161
   • UN Peacekeeping

8. General Assembly adopts ONUC financing resolution (A/RES/1595)

   Apr 3, 1961Labels: UN General, A RES

   • UN Digital
   • UK Hansard

9. ONUC launches Operation Morthor in Katanga

   Sep 13, 1961Labels: Operation Morthor, Katangese forces

   • ONUC Wiki

10. Secretary-General Hammarskjöld killed in Ndola crash

    Sep 18, 1961Labels: Dag Hammarskj, Ndola crash

    • UN Crash Wiki
    • UN Peacekeeping

11. Security Council authorizes stronger action against mercenaries (Resolution 169)

    Nov 24, 1961Labels: Resolution 169, mercenaries

    • UN Digital
    • UNSCR 169

12. Operation Grandslam defeats Katangese forces

    Dec 28, 1962Labels: Operation Grandslam, Katangese forces

    • Grandslam Wiki
    • UN Peacekeeping

13. Katanga secession formally ends

    Jan 17, 1963Labels: Katanga, secession end

    • Grandslam Wiki
    • UN Peacekeeping

14. ONUC fully withdrawn from Congo

    Jun 30, 1964Labels: ONUC withdrawal, United Nations

    • UN Peacekeeping
    • ONUC Fact