In addition to the three major Axis powers, six other countries have signed the tripartite pact as your member states. Among the other countries, Romania, Hungary, Bulgaria, the independent state of Croatia and Slovakia participated with their national armed forces in various military operations of the Axis powers, while the sixth, Yugoslavia, its pro-Nazi government, was overthrown by a coup just days after the signing of the pact and membership was cancelled. In 1932, Gyula And the National Unity Party in Hungary took power and immediately sought an alliance with Italy.  He attempted to change the Hungarian post-treaty on the Trianon borders, but he knew that Hungary alone was not in a position to challenge the powers of Little Entente by forming an alliance with Austria and Italy.  Mussolini was enthused by the alliance of Gmos with Italy, and they worked together to bring Austrian Chancellor Engelbert Dollfuss to a tripartite economic agreement with Italy and Hungary.  At the meeting between Gambos and Mussolini on 10 November 1932 in Rome, the question of Austria`s sovereignty in the context of the NSDAP`s takeover in Germany was foretold.  Mussolini was concerned about Nazi ambitions towards Austria and suggested that he was committed, at least in the short term, to the maintenance of Austria as a sovereign state.  Italy was concerned about a Germany that included Austria, which was selling land in the German regions of South Tyrol (also known as Alto-Adige) within Italy, bordering Austria to Brenner. Mr Mussolini replied that Austria`s attachment to Germany was inevitable, since the Austrians identified Germany above all, and advised Italy to let a friendly Germany pass by the Brenner rather than a Germany.  Mussolini said he hoped the connection could be postponed as long as possible until the outbreak of a European war which, according to his estimates, would begin in 1938.
 The tripartite pact was the culmination of a series of agreements between Germany, Japan and Italy. On 25 October 1936, Germany and Italy concluded the Rome-Berlin axis, a cooperation agreement. A month later, Japan joined the so-called axis powers by signing (with Germany) the anti-communist pact, an anti-communist agreement that targeted the Soviet Union in the first place; Italy signed in 1937. However, this pact was broken with the German-Soviet non-aggression pact of 23 August 1939, which paved the way for Germany to invade Poland the following week and thus begin the Second World War. Although Finland never signed the tripartite pact, it fought against the Soviet Union alongside Germany in the 1941-1944 war, when the official position of the war-era Finnish government was that Finland was a fighter for the Germans whom they described as "brothers-in-arms".  In November 1941, Finland signed the relaunched anti-communist pact.  In 1947, Finland signed a peace treaty with the Allies, describing Finland as "the ally of Hitler`s Germany" during the Continuation War.  In 1941, the Gross Domestic PRODUCT (GDP) of the Axis powers was the highest in international dollars in 1990.  The GDP of the Allied powers was $1.798 billion. The United States was $1.094 billion, more than the combined axis.  The ties between the Axis powers were strengthened by a comprehensive military and political alliance between Germany and Italy (the steel pact, 22 May 1939) and by the tripartite pact signed by the three powers on 27 September 1940, one year after the invasion of Poland and the start of the Second World War.