"Freikorps" also fought against the communists in the Baltics, Silesia, Poland and East Prussia after the end of World War I, including aviation combat, often with significant success. Anti-Slavic racism was sometimes present, although the ethnic cleansing ideology and anti-Semitism expressed in later years had not yet developed. In the Baltics they fought against communists as well as against the newborn independent democratic countries Estonia and Latvia. In Latvia, Freikorps murdered 300 civilians in Mitau who were suspected of having "Bolshevik sympathies". After the capture of Riga, another 3000 alleged communists were killed, including summary executions of 50–60 prisoners daily. Though officially disbanded in 1920, some of them continued to exist for several years and many "Freikorps" attempted, unsuccessfully, to overthrow the government in the Kapp Putsch in March 1920. Their attack was halted when German citizens loyal to the government went on strike, cutting off many services and making daily life so problematic that the coup was called off.