string entangled in barbwire macro

barb barbed barbwire barrier black bob border boundary camp close closeup concept conceptual danger dangerous defend defending defense detail detailed entangle entangled entangling entry entwine entwined entwining escape escaping fence fencing forbid forbidden guard guarding hinder hindering hindrance imprisonment iron jail limit line macro metal metallic military obstacle pain painfull point pointy prison private prohibit prohibited property protect protection restrain restraining rope secure securing security sharp spike spiked spiky steel string tangled trench trespass tresspassing white wire