Its cause was mainly mounting tensions between the two leading political parties, which subsequently ignited after the assassination of the Liberal presidential candidate Jorge Eliécer Gaitán on 9 April 1948.
Penyebab utamanya karena memuncaknya tekanan antara dua partai politik yang dominan, yang dipicu oleh pembunuhan kandidat presiden Liberal Jorge Eliécer Gaitán pada ], 1948.