internment

The act of interning or confining, especially in wartime.

The state of being interned; confinement.

The state or condition of being interned; confinement, as of prisoners of war, in the interior of a country.

Confinement within narrow limits, -- as of foreign troops, to the interior of a country.

Confining within a country for the duration of a war; -- usually of citizens of a hostile power.