 Extensive measures were undertaken to "serbianise" Macedonia, including closing Bulgarian Orthodox Church schools, revising history textbooks, dismissing "unreliable" teachers, banning the use of the Bulgarian language, and imposing lengthy jail terms for those convicted of anti-state activities.Hundreds of Bulgarian activists were murdered and thousands arrested in the period immediately following the war, and around 50,000 troops were stationed in Macedonia.Bands of Serbian Chetniks, including one led by Babunski, were organised to terrorise the population, kill pro-Bulgarian resistance leaders and recruit the local population into forced labour for the army.