barbed wire close-up against a blue sky, the concept of incarceration, serving a sentence, restriction of freedom, isolation, crim

barbed wire close blue sky concept incarceration serving sentence restriction freedom isolation crim liberty gulag empty refugee symbol dusk prisoner private grungy safety grunge dark concrete obstacle weathered imprisonment aged penitentiary isolated crime chain sundown immigration cross war military jail steel guard sharp cloud barrier black iron silhouette danger border boundary metal wall fence prison protection security punishment