The phrase 1 gear forward and 6 in reverse was applied to the Italians in both the World Wars. While they were in an alliance with Germany and Austria-Hungary (The Triple Alliance) they pulled out of the agreement and in 1915 attacked Austria-Hungary after a secret meeting with the British. Italy did not think that Autria-Hungary would not grant to Italy the lands it desired for it's territorial expansion, as those lands were under the control of Austria, which they did not trust to give up in exchange for an alliance. They determined that the best way to get thsoe territories was to side with the Triple Entente. Their war with Austira-Hungary resulted in a stalemate of trench warfare and thousands of casualties, for the most part. In World War II Italy remained neutral for 10 months even though it was one of the Axis powers (With Germany again, now the second side switch, plus dilly dallying) once it looked like the war was nearly over. Mussolini said "I only need a few thousand dead so that I can sit at the peace conference as a man who has fought." In 1943 Mussolini was forced out of government, and Italy surrendered to the Allies and semi-helped them. This is my quick summary on where the phrase "Italian tanks have 1 gear going forward, and 6 going backward" came from.
http://www.spartacus.schoolnet.co.uk/FWWitalyW.htm
http://en.wikipedia.org/wiki/Military_history_of_Italy_during_World_War_II