 Complete the following phrase:  After the outbreak of World War I, Sinigaglia volunteered into the Royal Italian Army and was assigned to the 2nd Regiment Granatieri di Sardegna Mechanized Brigade. After a period of training he took part in the offensive against Monte Sabotino and Monte Podgora. In 1916 he was promoted to lieutet and served in the Battle of Asiago. He later took part in the 