Contain

Containment is a geopolitical strategy to stop the expansion of an enemy. Containment may also refer to: Containment (computer programming), a form of object composition Containment (documentary), a 2015 film about nuclear waste Containment (film), a 2015 British film Containment (TV series), a 2016 American series Containment building, a structure enclosing a nuclear reactor Containment (set theory), another term for a subset