On this day, 91 years ago, on March 17, 1934 (February 3, 1934, the lunar calendar), Austria, Hungary, and Italy signed the Rome Protocol. The Rome Protocol is a protocol for Italy, Austria and Hungary to establish close relations and adopt common policies. On March 17, 1934, Austria, Hungary, and Italy adopted a common policy to establish closer relations. Agreements were reached in Rome on issues such as countering the forces of Czech, Romanian, Yugoslav Allies and France. The protocol stipulates that the three countries should establish close trade relations economically; Diplomatically, the three countries conduct consultations; militarily, Italy assumes the responsibility of ensuring Austria's independence and not being annexed by Germany; when there is civil strife in Austria, it intends to interfere. The protocol also reflects the contradiction between Italy and Germany. On October 25, 1936, Germany and Italy signed an agreement in Berlin, forming the "Berlin-Rome Axis", and the "Rome Protocol" lapsed.