In addition to the three major Axis powers, six other countries signed the
Tripartite Pact as its member states. Of the additional countries, Hungary, Slovakia, Bulgaria, the Independent State of Croatia, and Romania participated in various Axis military operations with their national armed forces, while the sixth, Yugoslavia, saw its Tripartite signatory government overthrown earlier in a coup merely days after it signed the Pact, and the membership was reversed.
Hungary tank as used during the 1941 Axis invasion of the Soviet UnionThe
Kingdom of Hungary, ruled by
Regent Admiral
Miklós Horthy, was the first country apart from Germany, Italy, and Japan to adhere to the Tripartite Pact, signing the agreement on 20 November 1940. Political instability plagued the country until Miklós Horthy, a Hungarian nobleman and
Austro-Hungarian naval officer, became regent in 1920. The vast majority of the Hungarians desired to recover former territories of the
Lands of the Crown of Saint Stephen lost through the
Treaty of Trianon. During the government of
Gyula Gömbös, Hungary drew closer to Germany and Italy largely because of a shared desire to revise the peace settlements made after World War I. Many people sympathized with the
antisemitic policy of the Nazi regime. Hungary refused to participate in Nazi Germany's planned invasion of Czechoslovakia during the Sudeten Crisis, but after the Munich Agreement carried out a diplomatic rapprochement in order to avoid Germany developing too close of an alliance with Hungary's rival Romania. Overall, Hungarian Jews suffered close to 560,000 casualties. fighter aircraft, derived from the
Reggiane Re.2000, an Italian fighter design Relations between Germany and the regency of
Miklós Horthy collapsed in 1944 when Horthy attempted to negotiate a peace agreement with the Soviets and jump out of the war without German approval. Horthy was forced to abdicate after German commandos, led by Colonel
Otto Skorzeny, held his son hostage as part of
Operation Panzerfaust. Hungary was reorganized following Horthy's abdication in December 1944 into a totalitarian regime called the
Government of National Unity, led by
Ferenc Szálasi. He had been
Prime Minister of Hungary since October 1944 and was leader of the
Hungarist Arrow Cross Party. Its jurisdiction was effectively limited to an ever-narrowing band of territory in
central Hungary, around
Budapest since by the time they took power the
Red Army was already far inside the country. Nonetheless, the Arrow Cross rule, short-lived as it was, was brutal. In fewer than three months, Arrow Cross death squads killed as many as 38,000
Hungarian Jews. Arrow Cross officers helped
Adolf Eichmann re-activate the deportation proceedings from which the Jews of Budapest had thus far been spared, sending some 80,000 Jews out of the city on slave labour details and many more straight to death camps. Most of them died, including many who were murdered outright after the end of the fighting as they were returning home. Days after the Szálasi government took power, the capital of
Budapest was surrounded by the Soviet
Red Army. German and Hungarian forces tried to hold off the Soviet advance but failed. After fierce fighting, Budapest was taken by the Soviets. A number of pro-German Hungarians retreated to Italy and Germany, where they fought until the end of the war. In March 1945, Szálasi fled to Germany as the leader of a government in exile, until the surrender of Germany in May 1945.
Romania fighter aircraft With the exception of Germany and Italy, Romania was the only country where a Fascist movement came to power without foreign assistance. When war erupted in Europe, the economy of the
Kingdom of Romania was already subordinated to the interests of Nazi Germany through a
treaty signed in the spring of 1939. Nevertheless, the country had not totally abandoned pro-British sympathies. Romania had also been allied to the
Poles for most of the interwar era. Following the
invasion of Poland by Germany and the Soviet Union, and the German conquest of France and the
Low Countries, Romania found itself increasingly isolated; meanwhile, pro-German and pro-Fascist elements began to grow. The August 1939
Molotov–Ribbentrop Pact between Germany and the Soviet Union contained a secret protocol ceding
Bessarabia, and
Northern Bukovina to the Soviet Union. On June 28, 1940, the Soviet Union
occupied and annexed Bessarabia, as well as part of northern Romania and the
Hertsa region. On 30 August 1940, as a result of the
German–
Italian arbitrated
Second Vienna Award Romania had to cede
Northern Transylvania to Hungary.
Southern Dobruja was ceded to
Bulgaria in September 1940. In an effort to appease the Fascist elements within the country and obtain German protection,
King Carol II appointed the General
Ion Antonescu as Prime Minister on September 6, 1940. at the
Führerbau in
Munich (June 1941) Two days later, Antonescu forced the king to abdicate and installed the king's young son
Michael (Mihai) on the throne, then declared himself
Conducător ("Leader") with dictatorial powers. The
National Legionary State was proclaimed on 14 September, with the
Iron Guard ruling together with Antonescu as the sole legal political movement in Romania. Under King Michael I and the military government of Antonescu, Romania signed the
Tripartite Pact on November 23, 1940. German troops entered the country on 10 October 1941, officially to train the
Romanian Army. Hitler's directive to the troops on 10 October had stated that "it is necessary to avoid even the slightest semblance of military occupation of Romania". The entrance of German troops in Romania determined Italian dictator
Benito Mussolini to launch an invasion of Greece, starting the
Greco-Italian War. Having secured Hitler's approval in January 1941, Antonescu
ousted the Iron Guard from power. Romania was subsequently used as a platform for invasions of Yugoslavia and the Soviet Union. Despite not being involved militarily in the
Invasion of Yugoslavia, Romania requested that Hungarian troops not operate in the
Banat. Paulus thus modified the Hungarian plan and kept their troops west of the
Tisza. Romania joined the German-led invasion of the Soviet Union on June 22, 1941. Antonescu was the only foreign leader Hitler consulted on military matters and the two would meet no less than ten times throughout the war. Romania re-captured Bessarabia and Northern Bukovina during
Operation Munchen before conquering further Soviet territory and establishing the
Transnistria Governorate. After the
Siege of Odessa, the city became the capital of the Governorate. Romanian troops
fought their way into the Crimea alongside German troops and contributed significantly to the
Siege of Sevastopol. Later, Romanian mountain troops joined the German campaign in the Caucasus, reaching as far as
Nalchik. After suffering devastating losses
at Stalingrad, Romanian officials began secretly negotiating peace conditions with the Allies. 's design was likely used by the Germans to develop the
Hetzer.
Romania's military industry was small but versatile, able to copy and produce thousands of French, Soviet, German, British, and Czechoslovak weapons systems, as well as producing capable original products. The
Romanian Navy also built sizable warships, such as the minelayer and the submarines and . Hundreds of originally-designed
Romanian Air Force aircraft were also produced, such as the fighter
IAR-80 and the light bomber
IAR-37. The country had
built armored fighting vehicles as well, most notably the
Mareșal tank destroyer, that likely influenced the design of the German
Hetzer. Romania had also been a major power in the oil industry since the 1800s. It was one of the largest producers in Europe and the
Ploiești oil refineries provided about 30% of all Axis oil production. British historian
Dennis Deletant has asserted that Romania's crucial contributions to the Axis war effort, including having the third largest Axis army in Europe and sustaining the German war effort through oil and other materiel, meant that it was "on a par with Italy as a principal ally of Germany and not in the category of a minor Axis satellite". Another British historian, Mark Axworthy, believes that Romania could even be considered to have had the second most important Axis army of Europe, even more so than that of Italy. Under Antonescu Romania was a fascist dictatorship and a totalitarian state. Between 45,000 and 60,000 Jews were killed in
Bukovina and
Bessarabia by Romanian and German troops in 1941. According to Wilhelm Filderman at least 150,000 Jews of Bessarabia and Bukovina, died under the Antonescu regime (both those deported and those who remained). Overall, approximately 250,000 Jews under Romanian jurisdiction died. By 1943, the tide began to turn. The Soviets pushed further west, retaking Ukraine and eventually launching an
unsuccessful invasion of eastern Romania in the spring of 1944. Romanian troops in the Crimea
helped repulse initial Soviet landings, but eventually all of the peninsula was re-conquered by Soviet forces and the
Romanian Navy evacuated over 100,000 German and Romanian troops, an achievement which earned Romanian Admiral
Horia Macellariu the
Knight's Cross of the Iron Cross. During the
Jassy-Kishinev Offensive of August 1944, Romania
switched sides on August 23, 1944. Romanian troops then fought alongside the Soviet Army until the end of the war, reaching as far as Czechoslovakia and Austria.
Germany's main European ally (September 1943 – August 1944) After the September 1943
Armistice of Cassibile with Italy, Romania became the second Axis power in Europe. The Romanians shared in the spoils of
Operation Achse, 5
CB-class midget submarines in the Black Sea being transferred to the Romanian Navy. Romania also captured 496 Italians, mostly naval personnel (2 of them later died). Before the month was out, Germany had agreed to systematically supply the Romanian Army with German military vehicles, via the Olivenbaum I-III and Quittenbaum I programs. Deliveries started in November 1943, and by August 1944, Germany had supplied Romania with 10 times more armored vehicles (
Panzer III,
Panzer IV and
Sturmgeschütz III) than during the entire pre-Cassibile period. Having acquired the license to produce the
Messerschmitt Bf 109, Romania planned to assemble 75 from German parts. Deliveries began in May 1944, but only 6 were completed before Romania left the Axis in August 1944. Eleven more were completed by the end of the war with the remaining 58 completed after the war. In 1944, Romania had also gained access to certain
Wunderwaffen, such as the
Werfer-Granate 21. The first Romanian-made
Fiesler Storch was completed in October 1943, followed by 9 more by May 1944. From March 1944, Germany also contributed to the design and construction of the M-05 and M-06 prototypes of the Mareșal tank destroyer:
Alkett contributed to the Romanian design team and
Telefunken radios along with
Böhler armor were provided. The
75 mm Reșița gun (production started at the end of 1943) used the projectile chamber of the German
Pak 40. Technology transfers between the two countries were not necessarily one-way, however. On 6 January 1944, Antonescu showed Hitler the plans of the M-04 prototype of the
Mareșal tank destroyer. In May 1944, Lieutenant-Colonel Ventz from the
Waffenamt acknowledged that the
Hetzer had followed the Romanian design. German-led
Army Group South Ukraine could not take major operational decisions without securing
Ion Antonescu's approval, even as late as 22 August 1944 (the day before
he was dismissed). An entire German army (
the 6th) came under Romanian command in May 1944, when it became part of Romanian general
Petre Dumitrescu's
Armeegruppe. For the first time in the war, German commanders came under the actual (rather than nominal) command of their foreign allies. This Romanian-led army group had 24 divisions of which 17 were German.
Slovakia greeting
Jozef Tiso, president of the
Slovak Republic, 1941 The
Slovak Republic under President
Jozef Tiso signed the Tripartite Pact on 24 November 1940. Slovakia had been closely aligned with Germany almost immediately from its declaration of independence from Czechoslovakia on 14 March 1939. Slovakia entered into a treaty of protection with Germany on 23 March 1939.
Slovak troops joined the German invasion of Poland, having interest in
Spiš and
Orava. Those two regions, along with
Cieszyn Silesia, had been
disputed between Poland and Czechoslovakia since 1918. The Poles fully annexed them following the
Munich Agreement. After the invasion of Poland, Slovakia reclaimed control of those territories. Slovakia invaded Poland alongside German forces, contributing 50,000 men at this stage of the war. , Japanese envoy to Slovak Republic and Ambassador to Germany with Slovak president
Jozef Tiso and Slovak prime minister
Vojtech Tuka, 1941 Slovakia declared war on the Soviet Union in 1941 and signed the revived Anti-Comintern Pact in 1941. Slovak troops fought on Germany's Eastern Front, furnishing Germany with two divisions totaling 80,000 men. Slovakia declared war on the United Kingdom and the United States in 1942. Slovakia was spared German military occupation until the
Slovak National Uprising, which began on 29 August 1944, and was almost immediately crushed by the Waffen SS and Slovak troops loyal to Josef Tiso. After the war, Tiso was executed and Slovakia once again became part of Czechoslovakia. The border with Poland was shifted back to the pre-war state.
Bulgaria during the Balkans campaign The
Tsardom of Bulgaria was ruled by
Тsar Boris III when it signed the Tripartite Pact on 1 March 1941. Bulgaria had been on the losing side in the First World War and sought a return of what the Bulgarian leadership saw as lost ethnically and historically Bulgarian territories, specifically in
Macedonia and
Thrace (divided between the
Kingdom of Yugoslavia, the
Kingdom of Greece, and Turkey). During the 1930s, because of traditional right-wing elements, Bulgaria drew closer to Nazi Germany. In 1940 Germany pressured Romania to sign the
Treaty of Craiova, returning to Bulgaria the region of
Southern Dobrudja, which it had lost in 1913. The Germans also promised Bulgaria – if it joined the Axis – an enlargement of its territory to the borders specified in the
Treaty of San Stefano. Bulgaria participated in the
Axis invasion of Yugoslavia and Greece by letting German troops attack from its territory and sent troops to Greece on April 20. As a reward, the Axis powers allowed Bulgaria to occupy parts of both countriessouthern and south-eastern Yugoslavia (
Vardar Banovina) and north-eastern Greece (parts of
Greek Macedonia and
Greek Thrace). The Bulgarian forces in these areas spent the following years fighting various nationalist groups and
resistance movements. Despite German pressure, Bulgaria did not take part in the
Axis invasion of the Soviet Union and actually never declared war on the Soviet Union. The
Bulgarian Navy was nonetheless involved in a number of skirmishes with the Soviet
Black Sea Fleet, which attacked Bulgarian shipping. Following the Japanese attack on Pearl Harbor in December 1941, the Bulgarian government declared war on the
Western Allies. This action remained largely symbolic (at least from the Bulgarian perspective), until August 1943, when Bulgarian air defense and air force attacked Allied bombers, returning (heavily damaged) from a mission over the Romanian oil refineries. This turned into a disaster for the citizens of
Sofia and other major Bulgarian cities, which were heavily bombed by the Allies in the winter of 1943–1944. On 2 September 1944, as the
Red Army approached the Bulgarian border, a new Bulgarian government came to power and sought peace with the Allies, expelled the few remaining German troops, and declared neutrality. These measures however did not prevent the Soviet Union from declaring war on Bulgaria on 5 September, and on 8 September the Red Army marched into the country, meeting no resistance. This was followed by the
coup d'état of 9 September 1944, which brought a government of the pro-Soviet
Fatherland Front to power. After this, the Bulgarian army (as part of the Red Army's
3rd Ukrainian Front) fought the Germans in Yugoslavia and Hungary, sustaining numerous casualties. Despite this, the
Paris Peace Treaty treated Bulgaria as one of the defeated countries. Bulgaria was allowed to keep
Southern Dobruja, but had to give up all claims to Greek and Yugoslav territory.
Independent State of Croatia meeting with NDH leader
Ante Pavelić On 10 April 1941, the so-called
Independent State of Croatia (
Nezavisna Država Hrvatska, or NDH), an installed German–Italian puppet state, co-signed the Tripartite Pact. The NDH remained a member of the Axis until the end of Second World War, its forces fighting for Germany even after its territory had been overrun by
Yugoslav Partisans. On 16 April 1941,
Ante Pavelić, a Croatian nationalist and one of the founders of the
Ustaše (
"Croatian Liberation Movement"), was proclaimed
Poglavnik (leader) of the new regime. Initially the Ustaše had been heavily influenced by Italy. They were actively supported by Mussolini's
National Fascist Party regime in Italy, which gave the movement training grounds to prepare for war against Yugoslavia, as well as accepting Pavelić as an exile and allowing him to reside in Rome. In 1941 during the Italian invasion of Greece, Mussolini requested that Germany invade Yugoslavia to save the Italian forces in Greece. Hitler reluctantly agreed; Yugoslavia was invaded and the NDH was created. Pavelić led a delegation to Rome and offered the crown of the NDH to an Italian prince of the
House of Savoy, who was crowned
Tomislav II. The next day, Pavelić signed the Contracts of Rome with Mussolini, ceding
Dalmatia to Italy and fixing the permanent borders between the NDH and Italy. Italian armed forces were allowed to control all of the coastline of the NDH, effectively giving Italy total control of the Adriatic coastline. When the King of Italy ousted Mussolini from power and Italy capitulated, the NDH became completely under German influence. The platform of the Ustaše movement proclaimed that Croatians had been oppressed by the Serb-dominated Kingdom of Yugoslavia, and that Croatians deserved to have an independent nation after years of domination by foreign empires. The Ustaše perceived Serbs to be racially inferior to Croats and saw them as infiltrators who were occupying Croatian lands. They saw the extermination and expulsion or deportation of Serbs as necessary to racially purify Croatia. While part of Yugoslavia, many
Croatian nationalists violently opposed the Serb-dominated Yugoslav monarchy, and assassinated
Alexander I of Yugoslavia, together with the
Internal Macedonian Revolutionary Organization. Ustashe forces fought against communist
Yugoslav Partisan guerrilla throughout the war. The Ustaše regime lacked general support among Croats and never accrued any significant support among the populace. The Ustaše regime was backed by parts of the Croat population that during the
interwar period had felt oppressed in the Serb-led
Yugoslavia. Most of the support it had initially gained by creating a Croatian national state was lost because of the brutal practices it used. Upon coming to power, Pavelić formed the
Croatian Home Guard (
Hrvatsko domobranstvo) as the official military force of the NDH. Originally authorized at 16,000 men, it grew to a peak fighting force of 130,000. The Croatian Home Guard included an air force and navy, although its navy was restricted in size by the Contracts of Rome. In addition to the Croatian Home Guard, Pavelić was also the supreme commander of the
Ustaše militia, although all NDH military units were generally under the command of the German or Italian formations in their area of operations. The Ustaše government declared war on the Soviet Union, signed the Anti-Comintern Pact of 1941, and sent troops to Germany's Eastern Front. Ustaše militia were garrisoned in the Balkans, battling the communist partisans. The Ustaše government applied racial laws on Serbs, Jews, and
Romani people, as well as targeting those opposed to the fascist regime, and after June 1941 deported them to the
Jasenovac concentration camp or to
Nazi concentration camps in Poland. The racial laws were enforced by the Ustaše militia. The exact number of victims of the Ustaše regime is uncertain due to the destruction of documents and varying numbers given by historians. According to the
United States Holocaust Memorial Museum in Washington, D.C., between
320,000 and 340,000 Serbs were killed in the NDH.
Yugoslavia (two-day membership) Yugoslavia was largely surrounded by members of the pact and now bordered the German Reich. From late 1940 Hitler sought a non-aggression pact with Yugoslavia. In February 1941, Hitler called for Yugoslavia's accession to the Tripartite Pact, but the Yugoslav government delayed. In March, divisions of the German army arrived at the Bulgarian-Yugoslav border and permission was sought for them to pass through to attack Greece. On 25 March 1941, fearing that Yugoslavia would be invaded otherwise, the Yugoslav government signed the Tripartite Pact with significant reservations. Unlike other Axis powers, Yugoslavia was not obliged to provide military assistance, nor to provide its territory for Axis to move military forces during the war. Less than two days later, after demonstrations in the streets of Belgrade,
Prince Paul and the government were removed from office by a
coup d'état. Seventeen-year-old
King Peter was declared to be of age. The new Yugoslav government under General
Dušan Simović, refused to ratify Yugoslavia's signing of the Tripartite Pact, and started negotiations with Great Britain and Soviet Union. Winston Churchill commented that "Yugoslavia has found its soul"; however, Hitler invaded and quickly took control. == Anti-Comintern Pact signatories ==