According to U.S. Department of State, Viet Nam is graded as the safest group which has the lowest advisory level for safety and security risk.
The Travel Advisory Levels helps travellers to assure their own safety when travelling internationally by dividing destined countries into four levels. The levels for safety and security risk are varied from the highest risk-level 4: “Do not travel” to the lowest-level 1: “Exercise normal precautions”./.
By Son Ha