Border policemen stand guard next to a barbed wire wall on the Bulgarian border with Turkey, near the village of Golyam Dervent on July 17, 2014. Overwhelmed by an influx of mostly Syrian immigrants, Bulgaria has taken steps to secure its EU border -- including building a barbed-wire fence -- but now faces criticism from rights groups. The 30-kilometre (19-mile) fence, standing three metres (10 feet) high and fortified with razor wire coils, was completed this week. Covering the least visible section of Bulgaria's 275-kilometre (170-mile) border with Turkey, it aims to stem a flow of refugees that saw more than 11,000 people enter the country illegally last year -- 10 times the annual figure before the Syrian conflict.   AFP PHOTO / DIMITAR DILKOFF / AFP / DIMITAR DILKOFF        (Photo credit should read DIMITAR DILKOFF/AFP/Getty Images)