Complex sentence: In 1941, Fascist Italy's propaganda broadcast on Rome Radio, contained a bizarre claim that Bastin had been captured in the Battle of Crete, and was being detained in Italy; the Italians were seemingly unaware that Bastin was deaf and had been excused service.
Split into simpler sentences: In 1941, Fascist Italy's propaganda broadcast on Rome Radio, contained a bizarre claim that Bastin had been captured in the Battle of Crete, and was being detained in Italy. Assumedly the Italians were unaware that Bastin was deaf and had been excused service.