 Complete the following phrase:  Jan Wojciech Kiwerski, nom de guerre Oliwa, also Dyrektor, Kalinowski, Lipinski, Rudzki, Ziomek 23 May 1910 - 18 April 1944 was a colonel of the Polish Army and commandant of the 27th Home Army Infantry Division. Kiwerski was killed in action on April 18, 1944, during 