What was the cordon sanitaire?

Answer 1

The cordon sanitaire was a political and military strategy employed primarily in the 19th and early 20th centuries to isolate a country or region experiencing social unrest, disease, or revolutionary movements. It involved surrounding the area with a barrier, often consisting of troops or checkpoints, to prevent the spread of instability or contagion to neighboring states. This approach aimed to maintain order and security by limiting contact and influence from the affected area. The term is also used in a broader context to describe efforts to contain political ideologies or movements deemed undesirable.