Pact of Steel in the context of "Kingdom of Italy under Fascism (1922–1943)"

The Axis powers, originally called the Rome–Berlin Axis and also Rome–Berlin–Tokyo Axis, was the military coalition which initiated World War II and fought against the Allies. Its principal members were Nazi Germany, the Kingdom of Italy and the Empire of Japan. The Axis were united in their far-right positions and general opposition to the Allies, but otherwise lacked comparable coordination and ideological cohesion.

The Axis grew out of successive diplomatic efforts by Germany, Italy, and Japan to secure their own specific expansionist interests in the mid-1930s. The first step was the protocol signed by Germany and Italy in October 1936, after which Italian leader Benito Mussolini declared that all other European countries would thereafter rotate on the Rome–Berlin axis, thus creating the term "Axis". The following November saw the ratification of the Anti-Comintern Pact, an anti-communist treaty between Germany and Japan; Italy joined the Pact in 1937, followed by Hungary and Spain in 1939. The "Rome–Berlin Axis" became a military alliance in 1939 under the so-called "Pact of Steel", with the Tripartite Pact of 1940 formally integrating the military aims of Germany, Italy, Japan, and later followed by other nations. The three pacts formed the foundation of the Axis alliance.

The Kingdom of Italy was governed by the National Fascist Party from 1922 to 1943 with Benito Mussolini as prime minister transforming the country into a totalitarian dictatorship. The Fascists crushed political opposition, while promoting economic modernization, traditional social values and a rapprochement with the Roman Catholic Church. They also promoted imperialism, resulting in the expansion of the Italian Empire.

According to historian Stanley G. Payne, "[the] Fascist government passed through several relatively distinct phases". The first phase (1922–1925) was nominally a continuation of the parliamentary system, albeit with a "legally-organized executive dictatorship". In foreign policy, Mussolini ordered the pacification of Libya against rebels in the Italian colonies of Tripolitania and Cyrenaica (eventually unified in Italian Libya), inflicted the bombing of Corfu, established a protectorate over Albania, and annexed the city of Fiume into Italy after a treaty with the Kingdom of Yugoslavia. The second phase (1925–1929) was "the construction of the Fascist dictatorship proper". The third phase (1929–1935) saw less interventionism in foreign policy. The fourth phase (1935–1940) was characterized by an aggressive foreign policy: the Second Italo-Ethiopian War, which was launched from Eritrea and Somaliland; confrontations with the League of Nations, leading to sanctions; growing economic autarky; the invasion of Albania; and the signing of the Pact of Steel. The fifth phase (1940–1943) was World War II itself, ending in military defeat, while the sixth and final phase (1943–1945) was the rump Salò Government under German control.

The Tripartite Pact, also known as the Berlin Pact, was an agreement between Germany, Italy, and Japan signed in Berlin on 27 September 1940 by, respectively, Joachim von Ribbentrop, Galeazzo Ciano, and Saburō Kurusu (in that order) and in the presence of Adolf Hitler. It was a defensive military alliance that was eventually joined by Hungary (20 November 1940), Romania (23 November 1940), Slovakia (24 November 1940), Bulgaria (1 March 1941), and Yugoslavia (25 March 1941). Yugoslavia's accession provoked a coup d'état in Belgrade two days later. Germany, Italy, and Hungary responded by invading Yugoslavia. The resulting Italo-German client state, known as the Independent State of Croatia, joined the pact on 15 June 1941.

The Tripartite Pact was, together with the Anti-Comintern Pact and the Pact of Steel, one of a number of agreements between Germany, Japan, Italy, and other countries of the Axis powers governing their relationship.

On December 11, 1941, Italy declared war on the United States. The declaration followed the Japanese attack on Pearl Harbor four days earlier, and came the same day as Germany's declaration of war against the United States. Benito Mussolini publicly made the announcement in Rome on December 11. Shortly before Mussolini's speech, Italian Foreign Minister Galeazzo Ciano delivered the news to the head U.S. diplomat in Italy, George Wadsworth II.

The Italian, German, and Japanese governments had all signed the Tripartite Pact in 1940, formally allying the three powers with one another. Italy and Germany also signed the Pact of Steel military alliance in 1939. Italy had declared war on the United Kingdom and France on June 10, 1940, as Mussolini implemented the Pact of Steel and leveraged the German alliance to win advantages for Italy. Prior to Hitler's declaration of war against America there was little, if any, doubt that Italy would once again "follow Germany's lead."