Complex sentence: All political prisoners, including Ukrainian terrorists such as Mykola Lebed and Stefan Bandera, were freed by Polish authorities in early September 1939, the intention was to spare prisoners the trials of German captivity.
Split into simpler sentences: All political prisoners, including Ukrainian terrorists such as Mykola Lebed and Stefan Bandera, were freed by Polish authorities in early September 1939. The intention was to spare prisoners the trials of German captivity.