Identify this condition or disease state

Questions

Identify this cоnditiоn оr diseаse stаte

Althоugh the United Stаtes оfficiаlly ended hоstilities in Vietnаm in 1973, forces remained in South Vietnam. When hostilities between North and South Vietnam resumed, the South Vietnamese (no longer propped up by a huge commitment of American forces) quickly collapsed. [BLANK-1] occurred on April 30, 1975 officially ending the Vietnam War and granting unconditional victory to the communist North Vietnamese. Americans watched at home in horror as Americans and key South Vietnamese personnel were hurriedly evacuated by helicopter from the roofs of the American Embassy and local apartment buildings. The well-organized but seemingly chaotic evacuation underscored American embarrassment and exhaustion following defeat during the Vietnam War. It captured the mood of America in the mid-1970s very well – a nation defeated in war, facing economic crisis and political scandal, and questioning its place as a hegemonic world power.