The outnumbered rebels often fought to the death. Cuban forces used tactics that consisted of sweeps by long columns of ill-trained militia, which caused heavy government losses but ultimately won the war. Castro employed overwhelming force, at times consisting of 250,000 troops [http://www.cubanet.org/CNews/y02/may02/30a6.htm] (see Puebla). The insurgents sometimes defeated their opponents, but the attrition rate for the much smaller insurgent forces (at most 4,000 in total, Puebla) decided the war.