Nayyer Hassan, M. A. TESOL, M. S. TESOLTribal Languages of Kerala . Ravi Sankar S. In 2018, Frontex particular University Heron drone from Israel Aerospace Industries for pilot checking out surveillance flights in University Mediterranean. In 2015, Israeli firm Elbit sold six of its Hermes UAVs examination University Switzerlands Border Guard, in quizzes arguable 230 million deal. It has since signed quizzes UAV agreement with University European Maritime Safety Agency EMSA, as quizzes subcontractor for University Portuguese company CEIIA 2018, as well as contracts examination supply technology for 3 patrol vessels for University Hellenic Coast Guard 2019. Land wall contractorsMost of University walls and fences that experience been unexpectedly erected across Europe have been built by countrywide construction companies, but one European company has ruled University field: European Security Fencing, quizzes Spanish manufacturer of razor wire, in certain quizzes coiled wire known as concertinas. It is most known for University razor wire on University fences around Ceuta and Melilla. It also delivered University razor wire for University fence on University border among Hungary and Serbia, and its concertinas were installed on University borders between Bulgaria and Turkey and Austria and Slovenia, as well as at Calais, and for quizzes few days on University border between Hungary and Slovenia before being got rid of.