 Special European Border Forces of rapidly deployable border guards, called Rapid Border Intervention Teams (RABIT) who are armed and patrol cross-country land borders, were created by EU interior ministers in April 2007 to assist in border control, particularly on Europe's southern coastlines.Frontex's European Patron Network began work in the Canary Islands in May 2007 and armed border force officers were deployed to the Greece–Turkey border in October 2010.The Commission was prompted to take swift action due to the immigration crisis of 2015, which brought to the forefront the need to improve the security of the external borders of the union.