 Complete the following phrase:  The other unit, Waffen-Sturm-Brigade R.O.N.A., was tasked with clearing the Ochota district in Warsaw that was defended by members of the Polish Home Army. Their attack was planned for the morning of 5 August, but when the time came, the RONA unit could not be found; after some searching by the SS military police, members of the unit were found looting abandoned houses in the rear of the German column. Later, thousands of Polish civilians were killed by the RONA SS men during the events known as the 