On 12 December 1969 , people belonging to or sympathizing for Ordine Nuovo placed a bomb in Piazza Fontana in Milan , killing 16 and wounding 90 . This bombing marked the beginning of the " strategy of tension " in Italy . '' Ordine Nuovo '' member Delfo Zorzi was among those convicted for the crime on June 20 , 2001 , together with Carlo Maria Maggi and Giancarlo Rognoni , but all were later found not guilty in 2004
placed a bomb in Piazza Fontana
Piazza Fontana bombing
Ordine Nuovo