From the beginning of the Log Revolution and the end of April 1991, nearly 200 incidents involving the use of explosive devices and 89 attacks on the Croatian police were recorded. The Croatian Ministry of the Interior started arming an increasing number of special police forces, and this led to the building of a real army. On 9 April 1991, Croatian President Tuđman ordered the special police forces to be renamed "Zbor Narodne Garde" ("National Guard"); this marks the creation of a separate military of Croatia.