Certainly and to gain the UK as an ally at the expense of Italy would be a deal Hitler would have taken in a heartbeat but was it really ever on the table? Hitler was an opportunist but he was a calculating one, events would see that clouded by desperation in time and perhaps rage towards the Italians would have the same effect earlier on but what would he have to offer the British that he couldn't IOTL and what would make the British accept ITTL. The British taking a hardline stance on Italy over Abysinnia was largely due to public sympathy for the Ethiopians in an election year with the govt trying to secretly arrange an out for the Italians. Hitler offered the British support on the implicit basis they'd back him over Austria likely won't sound very attractive. If they'd really wanted they to could have pressed for the League of Nations sanctions against Italy to include coal and oil and in so doing likely sink the Italian war effort without German help. Presuming the British still turn down his overtures on this basis would he really go all-in on backing the Ethiopians, when it's clear the British govt aren't that interested in their plight, purely to spite the Italians?
Don't get wrong, I'd read the hell out of a Stukas over the Sahara TL but I'm not really sure it would work.
Don't get me wrong either- it probably wouldn't have been on the table, and Hitler certainly wouldn't have gone all in unless the British accepted his overtures on the implicit basis that they'd back him over Austria (which they almost certainly wouldn't have done), but given how little the Ethiopians had to work with IOTL's 2nd Italo-Ethiopian War, and how much the Christmas Offensive managed to accomplish, any noticeable improvement over the armament which the Germans provided them with IOTL could well have had a massive impact on the progress and eventual outcome of the war. Even if he's forced to settle for the territorial gains which were offered IOTL as part of the Hoare-Laval Pact, after the better equipped Ethiopian counter-offensive poses more of a set back to the Italian invasion ITTL than it did IOTL, it'd still represent relative humiliation for Mussolini. And of course, that's all under the assumption that Mussolini even launches the invasion of Abyssinia on the same schedule that he did IOTL, without a declaration of war, or does so at all, when the far more pressing and closer-to-home "Austrian Question" is far more of an issue ITTL.
With not just a small part of the Italian military deployed along the Austrian border as IOTL, having proclaimed to the world that "The independence of Austria, for which he (Dollfuß) has fallen, is a principle that has been defended and will be defended by Italy even more strenuously", but with a considerably larger part of the Italian military deployed within Austria itself, having aided the Austrofascist government in putting down a violent, German-supported Nazi uprising. Given his and Italy's far greater commitments closer to home, in "upholding stability in Europe", wouldn't it be more likely that he'd be more hesitant to deploy all of those Italian soldiers to Eritrea and Italian Somaliland instead so soon, and that he'd delay the planned invasion of Abyssinia for a few more years, and/or launch it with a markedly smaller, less well equipped and more colonial-heavy invasion force? In which instance, the Italians are distinctly less likely to achieve total victory in the war, and a lot more likely to fail entirely.
And let's not forget that the last possible foreign ally of Ethiopia to fall away was the third core member of the Tripartite Pact IOTL, Imperial Japan- with a historical arrangement between the Ethiopian government and the
Nagasaki Echiopia Keizai Chosa-kai Nikkei-Sha (Nagasaki Association for Economic Investigation of Ethiopia) having already been negotiated by its director Kitagawa Takashi in September 1933, which had granted the Japanese colonial company authorization to use 500,000 hectares of land in Ethiopia, along with a permit to grow cotton, tobacco, coffee, tea, green tea, rice, wheat, fruit trees, vegetables and ‘medicinal plants’ such as opium, a grant of fifteen hectares of land for each immigrant Japanese family, and 1,000 hectares of land next to Addis Ababa for a Japanese investigation mission to examine which plants could be grown in Ethiopia. And when Lij Araya Abeba, Haile Selassie’s nephew, who’d taken a trip to Japan (having accompanied the Ethiopian Minister of Foreign Affairs, Blattengetta Hiruy Wolde Selassie, on a trip to Japan in 1930 to sign a Treaty of Friendship and Commerce between the two countries), asserted that "It has been my long-cherished ambition to marry a Japanese lady. Of all first-class nations, Japan has the strongest appeal", Sumioka Tomoyoshi, a Tokyo lawyer, philo-Ethiopian nationalist, and Pan-Asian activist, agreed to arrange the marriage, and conducted the search for a suitable Japanese bride to marry into the Ethiopian royal family.
On January 18, 1934,
Juo Hyoron [Free Critics] published an article tying the proposed marriage to the international discord. Entitled,
"Warning to Ambitions in Ethiopia: 500,000 Yen Spent for the Engagement!", in part it read:
“Although we do not have any ambitions in Ethiopia, the countries such as Italy, France, and England which possess close and unalienable interests in Ethiopia, will most certainly understand the royal engagement as a part of Japan's African ambitions, including colonization. Though England and France are unworthy of any trust in a crisis, Italy as well as Germany are still somewhat the allies of an isolated Japan. It would be capricious of Japan to undertake an adventure that could damage Italy's feelings. We should firmly eliminate any ambitions toward Ethiopia and warn against rumors for the sake of the integrity of the Japanese lady who is to be sacrificed for concessions worth only 500,000 yen…”
However, unlike elsewhere, where the Japanese emigrants faced racial prejudice and forced assimilation, Ethiopian progressive intellectuals called “Japanizers” had been arguing that Japan was a good model for modern development, and supported marriage between the upper classes of the two countries. And many Japanese nationalists were also supportive of intermarriage between the proposed Japanese emigrants and Ethiopians, with popular opinion in Japan favoring closer ties with Ethiopia, and many believing in "the necessity of uniting the colored races against the white"- a direct quote from the woman who Lij Araya selected as his first choice in the bridal contest in Jan 1934, from at least 20 candidates who'd made the shortlist, Kuroda Masako, the 23yo second-born daughter of Viscount Kuroda Hiroyuki, of the forestry bureau of the Imperial Household, descended from the former Lord of Kazusa, a feudal lord in Chiba.
However, it was then found that she'd presented her picture and other credentials for the marriage contest without her parents' knowledge, causing a fair bit of turmoil with her family when they found out. Despite initial objections, her father grumpily relented to at least give it a chance, but insisted upon travelling to visit Ethiopia with her before he'd give his consent- and it was this small matter which eventually led to the marriage falling through. The Kuroda family lived in a tiny suburban house, and she'd graduated from the Kanto Gakuin Higher Girl's School in Yodobashi-ku. She spoke English fluently, having been one of the first Japanese girls to take part in an English oratorical contest and to win a prize. She was also noted as being taller than average (for a Japanese woman- standing 5ft 3in tall). After her enrollment as a candidate for the "prince's bride," she studied the habits and customs of Ethiopia, through books and conversations with those familiar with conditions there.
In school, Kuroda Masako had been a keen athlete who enjoyed swimming, basketball, volleyball, and tennis. And in an interview in February 1934, she enthusiastically remarked "I understand that the people of Ethiopia are extremely interested in sports, and I believe that I shall be able to indulge my taste for athletics when I go there. Unfortunately I did not have the opportunity of meeting Prince Abeba when he visited Japan a few years ago, but I have firmly decided to go to his country and I am willing to put up with whatever circumstances come along." She also expressed her desire to increase the ties of friendship uniting Japan and Ethiopia, and she saw herself as the first of many who would emigrate to Ethiopia. Unfortunately for her though, such radical statements sparked a great deal of alarmist sentiment among the colonial powers in Europe, especially Italy, and France to a lesser extent.
In 1934, two Japanese gunboats visited Djibouti, the primary maritime door to Ethiopia, and that same year the Japanese government sent Tsuchida Yutaka on an inspection tour of Ethiopia. Although eager to protect Ethiopia's independence from the predations of the United Kingdom, France, and Italy, and optimistic about commercial opportunities, Tsuchida felt that Japan, far from Ethiopia, could not have an effect on imperialist ambitions there, and risked antagonizing the Europeans. As such, both the proposed marriage and investment deal were blocked and forbidden by Japan's Gaimusho (foreign ministry). Difficulties rose to the point where Kuroda Masako, at the end of February 1934, defensively asserted that "I will go to Ethiopia even in the capacity of a private citizen, if the Imperial Household authorities should disapprove of my trip."
At that time, her mother acknowledged that the Imperial Household Department had not yet sanctioned her daughter's betrothal or proposed trip to Ethiopia- with Viscount Kuroda Hiroyuki's employment as a member of the Imperial Household, and his refusal to allow his daughter's marriage to go through unless he could travel Ethiopia to personally meet and approve of the groom first, allowing them to veto his trip, and thus the proposed marriage, indefinitely. She added that Araya "was scheduled to visit Japan in May of this year, but his trip has been indefinitely postponed. No direct word has been received from the Royal Family of Ethiopia, but Mr. Sumioka, a lawyer, is negotiating the matter." The American embassy in Tokyo agreed, reporting in February 1934 that the Japanese government had provided little information regarding the marriage and disparaged its political significance. The next month, the embassy reported that the marriage was about to fall through because of official Japanese opposition.
Haniyu Chotaro, a businessman from Kamakura, had spent five months in Ethiopia at the Gaimusho's request. Upon his return in April 1934, he publicly discussed the commercial opportunities available in that country. He then declared that
"This matter is very delicate from a viewpoint of the international situation, and I do not like to make any comment on it until I have submitted a report to the Foreign Office. Prince Ababa [Araya] is called a Prince only in Japan. In Ethiopia, he is called Lij Ababa, and the word Lij means "lord" in English. There are only three Princes of the Blood in Ethiopia. The Japanese Foreign Office has nothing to do with this marriage. Some time ago, an Italian newspaper sarcastically remarked that Japan intends to invade Africa with "kisses between the dark and the black by having a daughter of a Japanese peer married to an Ethiopian." The Ethiopian press from the outset has been taciturn on the matter. If Miss Kuroda really wants to marry Ababa, she had better, I think, personally inspect the actual conditions of Ethiopia."
Demanding a meeting with the new Japanese ambassador to Italy, Sugimura Yotaro, on the 16th July 1934, Mussolini linked the marriage to a number of contentious issues, complaining that "Japan is actively supplying weapons and ammunition to Ethiopia, sending a princess, and a newspaper in Tokyo is vigorously maneuvering Japanese-Ethiopian friendship." Sugimura, who had represented his government at Geneva at the time of Japan's withdrawal from the League of Nations, soon thereafter spoke with
La Tribuna of Rome; endeavoring to dispel suspicions of conflicting Italo-Japanese interests in Asia and Africa, he emphatically denied that the Japanese Army had sent instructors to Ethiopia as Mussolini had alleged. Regarding economic penetration of Ethiopia by Japan, Sugimura shifted the blame to “Jewish middlemen”, denied that there was any foundation for the rumor of a projected marriage between a Japanese princess and an Ethiopian prince, and offered to break ties with Ethiopia entirely, attempting to find common ground with Italy on business dealings in China; promising not to interfere with Italian interests in East Asia, encouraging importation of Italian wine and an exchange of students and teachers between them.
His comments stirred up a furore inside Japan, where there had been popular affinity for the African Empire. And despite popular opinion, when the Ethiopians approached Japan for help on 2 August they were refused, and even a modest request for the Japanese government to officially state its support for Ethiopia in the coming conflict was denied, on the grounds of attempting to facilitate improved relations and increased trade with Mussolini’s Italy. However, there proved to be little to no demand for Italian wine imports in Japan (in contrast with coffee imports, which were far more lucrative, and commanded a higher price in Japan than anywhere else in the world well into the 1960's), and the proposed Italo-Japanese student and teacher exchange never came to pass. Masako refused to give up, and kept trying to gather funds for her to travel there alone regardless; but on the night of July 24th 1935, she was allegedly mistaken for a communist, and taken to the Ueno police station in Tokyo.
The problem began when a policeman, Tajima Yukio, noted a suspicious-looking woman in black afternoon dress walking up and down the street near Ueno Park for two hours until about 8:00 p.m. The policeman disguised himself as a worker and arrested her. As it turned out, she had earlier reported to him that she had lost her purse containing about ¥5. She had borrowed 20 sen from him but had given a false name--therefore the trouble. Even after she had given her real name, and explained that she had been waiting for a friend, the policeman was still suspicious and took her in. She was, however, shortly released; and afterwards, Kuroda Masako, by then 25, finally caved in to her family's wishes, and gave up on her romantic dream of becoming an Ethiopian Princess IOTL.
So then, ITTL- where the Imperial Japanese would be cementing closer ties and currying greater favor with Hitler's Germany by following through with supporting the Ethiopians against Mussolini's Italy in the conflict, as well as looking out for their own colonial interests (effectively puppetizing Ethiopia to a similar extent as Siam in the process), and carrying out the will of the Japanese people into the bargain- wouldn't it be far more likely for the Japanese to either follow the lead of their foremost European ally, Nazi Germany, or to accept the responsibility (and acclaim among the anti-colonialist independence movements they supported elsewhere) for taking the lead themselves?
Having been emboldened by not only the British, but the Germans as well, adopting a hardline stance on Italy over Abyssinia, leaving only the French and Italians themselves for the Japanese to worry about "damaging the feelings of", mightn't it be far more viable and advantageous for the Japanese to intervene in the conflict, and support the Ethiopians against the Italian invasion? And there's no telling what the wider repercussions of that might've been. Heck, even if the Italian invasion never happened, or got set back a year or two by Mussolini's need to maintain a larger military presence either in Austria or along the Austrian border, to defend Austrian independence against the Nazis; that still would've given the
Nagasaki Echiopia Keizai Chosa-kai Nikkei-Sha its window to commence its operations there, and facilitated the establishment of a sizable Japanese diaspora in Ethiopia, in a similar manner to how the
Sociedad Colonizadora Japón-México did in Chiapas IOTL (having also been established for the purpose of creating coffee plantations for export to Japan).
And even in Mexico IOTL, a large number of Japanese immigrants were brought over as workers, contracted to companies doing business in the country which needed skilled labor- first in the mining and sugar cane industries, then later in construction and railroads. And the Japanese were relatively free from discrimination in Mexico, unlike in the United States, Brazil and other countries in the Americas, primarily due to the work that they did, which included the construction of factories, bridges and other infrastructure in Mexico. As such, the Japanese were viewed favorably, not considered to be foreign exploiters, but rather as partners in Mexico’s development, because of their technical skills in fields such as medicine and engineering. Surely this'd be even more true in Ethiopia ITTL, where the pre-established levels of infrastructure and education would be far lower, and the relative skill level of the Japanese diaspora would be far greater?