sentences:  As a result of further administrative division in 1975, Silesian Military District expanded to have 13 provinces within its radius of control, adding the following provinces; Czestochowa, Jelenia Gora, Walbrzych, Legnica, Leszno, Kalisz Voivodeship, Sieradz, and Gorzow.The 1990s were a period of restructuring for the Polish Army.The subordination of the District meant that there were 5 divisions, which developed a number of support units, with the total number of troops reaching approximately 100,000.