What did Leon Chameides have to do at the monastery in order to survive the war safely?

Leon Chameides, born on June 24, 1935,  in Katowice, Poland, discusses life in hiding at the Univ monastery in Ukraine; his liberation from hiding by the Russians; traveling to Lwów (L'viv, Ukraine); his reunion with his brother; staying with family members until the end of the war; moving to western Poland to escape Stalin; the black market in Poland; immigrating to England; daily life in Newcastle, where he lived for three years; immigrating to the United States on Queen Elizabeth I; daily life in Brooklyn, NY; remembering the Holocaust and his views on being a survivor; getting married and moving to Boston, MA; joining the Coast Guard and moving to Ohio; raising his family in Connecticut; reconnecting with others that hid in the monastery during the war; going back to Poland, and his thoughts on genocide.

Explanation:

"i care deeply about campaign finance reforms: - apex

sitting in that one chair where he could get shot at was his worst decision.