The British increased the use of force; reluctant to deploy the regular British Army into the country in greater numbers, they set up two auxiliary police units to reinforce the RIC. The first of these, quickly nicknamed as the Black and Tans, were seven thousand strong and mainly ex-British soldiers demobilised after World War I. Deployed to Ireland in March 1920, most came from English and Scottish cities. While officially they were part of the RIC, in reality they were a paramilitary force. After their deployment in March 1920, they rapidly gained a reputation for drunkenness and poor discipline. The wartime experience of most Black and Tans did not suit them for police duties and their violent behavior antagonised many previously neutral civilians.