In the 1990s, during a period of U.S. supremacy, the UN Security Council passed numerous resolutions and authorized peacekeeping operations.

Past events and how we study and remember them.

Efforts by international actors to prevent armed conflict from starting, contain it once underway, and support post-conflict stabilization. Encompasses military deployments, ceasefire monitoring, civilian protection, and political mediation — a central function of multilateral security architecture.