Italy commemorated a massacre by German occupying troops on the outskirts of Rome during World War II with a memorial service on Sunday, exactly 80 years since the atrocity. Soldiers from Nazi Germany shot a total of 335 men in the Ardeatine Caves in the south of the capital on March 24, 1944, in retaliation for an attack by Italian partisans in Rome the day before that killed 33 members of an Nazi’s SS police regiment. German Culture Minister Claudia Roth attended the memorial service on behalf of the German government and spoke of a “monstrous crime” in her remarks. Germany is aware of its h…