 On 22 February 2010 more than 40 officers were arrested and formally charged with attempting to overthrow the government with respect to so-called "Sledgehammer" plot.The accused included four admirals, a general and two colonels, some of them retired, including former commanders of the Turkish navy and air force (three days later, the former commanders of the navy and air force were released).Although the 2013 protests in Turkey started as a response against the removal of Taksim Gezi Park in Istanbul, they have sparked riots across the country in cities such as Izmir and Ankara as well.