His Lancaster bomber was shot down during a strategic bombing mission on 20 January 1944 over Neubrandenburg .
He was incarcerated for one year in the German war camp , Stalag Luft III .
His Lancaster bomber was shot down during a strategic bombing mission on 20 January 1944 over Neubrandenburg and he was incarcerated for one year in the German war camp , Stalag Luft III .