During which conflict was the privilege of the writ of habeas corpus suspended?

The suspension of the privilege of the writ of habeas corpus is closely associated with the Civil War, primarily due to the unprecedented challenges faced by the United States during that time. The president, Abraham Lincoln, took the significant step of suspending habeas corpus in order to maintain public safety and authority. This action allowed for the arrest and detention of individuals deemed threatening to the Union's war efforts without the immediate necessity of formal charges or a trial.

The context of the Civil War, with its intense internal conflict and divisions, contributed to a national emergency that Lincoln felt warranted such a measure. The suspension was a controversial decision aimed at suppressing dissent and maintaining order, illustrating the balance between civil liberties and national security during times of crisis.

In contrast, the other conflicts listed did not see a formal suspension of habeas corpus in a comparable manner, making the Civil War the most historically significant example of this legal privilege being suspended in response to a national emergency.