personnel number (which was a kept a state secret) varies, because often the commanders (hetmans) paid for additional manpower from their own purses. during peacetime, the commonwealth "komput" army numbered about 12,000 for the crown (poland proper) and 6,000 for the grand duchy of lithuania. during wartime it was increased to around 24,000–40,000 for the crown and 8,000-22,000 for lithuania.