The Beginnings of the End of Empires
The Yugoslav War was to put the nails in the coffins of two separate empires, British and French.
For the French, the Algerian War was directly linked to the Yugoslav War, namely due to its sparking being tied directly with the shipment of French troops from the rest of the Empire to Europe. The devastating defeat in Vodjovina (North Yugoslavia) after the Soviet mechanized counter-attack mandated that France find troops elsewhere and although conscription had been introduced, immediate troops were needed in order to prevent the Yugoslav Front from falling. The French government immediately entered negotiations with the exiled Sultan Mohammed V. Agreeing on limited home rule for Morocco that would immediately transition into full independence once negotiations with Spain had concluded, French troops immediately left Morocco for the shores of Yugoslavia. Similar negotiations took place in Tunisia directly with the Bey of Tunisia (instead of the more left-wing Tunisian National Movement) and the French soon quickly left Tunisia, putting the former gendarme under the Bey's control. Violence immediately broke out between supporters of Habib Bourguiba and supporters of the Bey and Ben Youssef, but regardless of the messy ending to French Tunisia, French troops were safely extricated and headed out to Yugoslavia. Similarly, Cambodia and Laos were granted independence as members of the French Union. French troops even began considering independence for Cameroon (a UN Trust territory and former German colony) as armed militants began attacking French police officers. With French India reverting to control of New Delhi, more troops were shipped from Asia to Europe.[1] The French were somewhat humiliated that after moving troops away from Vietnam, President Hinh of the Central Government of Vietnam immediately invited Duy Tan back to Vietnam, enshrining him as as a constitutional monarch of the new Empire of Vietnam, a move heavily supported by Chiang Kai-Shek, who immediately sent military assistance to the new Tan-Hinh government in their bid to defeat Viet Minh guerillas. Duy Tan had spent the years between 1946 and 1954 calling for total French withdrawal from Vietnam and a peaceful end to the Indochina War, only growing more and more popular. The French, despite Duy Tan's rhetoric, continued their withdrawal, comforted in the notion that the government would at least still be anti-Communist.
The most fateful transfer of French troops was to take place in Algeria, which was unlike Tunisia and Morroco, integral departments of Metropolitan France. Although both the French and native Algerian police kept order, most French troops were similarly shipped out to Yugoslavia. This emboldened the Algerian Communist Party (PCA), which was in close contact with Moscow. Soviet forces were aware that this would be a likely outcome of any French setback in Yugoslavia, and with prodding from Moscow, PCA militants and guerrillas launched attacks on Franco-Algerian police across Algeria in what became called "Red Easter" or "Bloody Easter."[2] The National Liberation Front (FLN) stayed neutral for a week, before joining in the violence as well, fearing that the Communists might take a leading role in what they also viewed would be a national revolution. The bad blood between the FLN and PCA would persist, with both groups often accusing each other of being "soft" on the French, as the two groups imagined fundamentally different futures for Algeria - the PCA imaging a Soviet-style Communist state and the FLN imagining a nationalistic, Islamic state. Although the violence began in light waves, the French quickly found out that this was developing into a real crisis as much of France's intelligentsia rallied behind the Algerian militants, with both groups flourishing in size despite whatever combat losses. Deprived of air power (busy in Yugoslavia), PCA and FLN militants could easily retreat into the mountains whenever pursued by French gendarmes, causing the rebellion to spread like wildfire.
The French wartime government of Guy Mollet had collapsed in the aftermath of the Vodjovina disaster, replaced by Pierre Mendes who then left government after the violence of Tunisian independence, and then replaced by fellow socialist Gaston Defferre. The Defferre government was unusually wide (including most of the non-Gaullist Right), which was necessary to push through many laws that were rather unpopular, including conscription, rationing, and censorship. The war was broadly unpopular in France, especially among Gaullists who were dismayed that the war with the Soviet Union (on behalf of a different Communist State!) was being prioritized over the French colonial empire. However, the mainstream French political class saw Soviet aggression as an existential threat to both France and the notion of European integration, which they believed was necessary to prevent a future third World War. The Gaullists quickly retorted that France was already fighting a third World War.
In the United Kingdom, what quickly became mocked as the "Butskellist" government (combining the names of Prime Minister Hugh Gaitskell and Tory leader Rab Butler) was already in far direr straights than the French Empire. If the French Empire became to decline, the British Empire had long been in free-fall. Unlike in France, which had constant changes of government but domestic tranquility, Britain had the opposite. In a gruesome blow to Prime Minister Gaitskell, the Trade Unions Congress allowed member unions to strike against the government in protest of a government announcement that economic rationing and conscription were returning to Britain. Although the TUC itself did not vote for a general strike like in 1926, several more of the extreme unions began striking. Great Britain had only just recovered from the brutal postwar winters. Furthermore, national morale was extremely low after the defeats in Burma and Vodvojina. Trust in British military capabilities was so low, the IRA grew overconfident, engaging in the most ambitious IRA operation to date, Operation Harvest, to attack British police and army troops. However, this campaign quickly gained public sympathy (among Northern Irish Catholics) who saw their living standards significantly drop due to all of Britain's wars abroad. The response of the British government, to both of these only built further rage. Judging all of these as examples of wartime insurrection, British armed forces broke up strikers with force and forcibly interned Northern Irish civil rights protesters. Neither stopped the rage.
At the start of the Yugoslav War, Great Britain was involved in several major colonial wars, in Egypt/Sudan, Burma, Malaya, and Kenya. After the disaster of Burma, the Gaitskell administration thought it prudent to extricate British troops from Malaya and Kenya as quickly as possible. However, quite surprisingly, the government of the Republic of China responded quite negatively to the possibility that British troops would leave Malaya. Quite frankly, Malaya was an even greater headache to the Chinese, realizing that it would be difficult for them to prevent a Communist uprising given the uncomfortable ethnic dynamics of the nation (the anti-Communists being also rather anti-Chinese). After several discussions, the British concluded that a drawdown in Malaya would weaken the ROC and thus strengthen the Soviet Union.
Egypt (namely the Suez) was viewed as the lynchpin of the British Empire and Gaitskell's Tory partners would not accept a withdrawal (even as the violence worsened). Thus, the British responded by a partial withdrawal. Although there were enough British troops to guard most of the major urban areas alongside the Nile, the countryside quickly became a hot bastion for anti-British rebels, whether they be Islamist, Nationalist, or Communist. Offensive actions (namely raids and targeted killings) were covertly outsourced to Israeli special forces, who quickly took this as carte blanche to wage their own separate war in Egypt against those viewed as most likely future threats to Israel. Most notably and unbeknownst to the UK, Mossad also targeted those figures they viewed as most likely to lead to a peaceful post-rebellion government, as they feared a united Egyptian nation-state would quickly seek to destroy Israel.
In Kenya, the British wanted to leave as quickly as possible, something that became possible after a major Mau Mau general, Dedan Kimathi, was defeated and captured.[3] However, it wasn't actually clear who to put in charge of a new Kenya, with much of the opposition (such as the Kapenguria Six) locked up as part of the anti-Mau Mau martial law.[4] In fact, political parties were flat out illegal under the martial law. With elements of the Conservative Party deeply invested in the support of white settlers in Africa (Kenya had 80,000, out of a population of over 6 million), the decision was made for Britain to just wash its hands clean of Kenya. In 1956, the British just transferred the Protectorate of Kenya (the coastal lands technically owned by the Sultanate of Zanzibar) to the Sultan himself, much to his great surprise and modest consternation. The Colony of Kenya, without much buy-in from many native politicians, was quickly reformed into the Federation of Kenya, with the native battalions of the King's African Rifles immediately taking on service as the new Kenyan Army. The political formation of Kenya was driven not by local negotiation between natives and settlers, but rather negotiations between Conservative and Labour politicians in Britain. To avoid comparisons to South Africa, the Federation of Kenya was an officially multiracial democracy, albeit one where white settler political and economic power was vastly over-represented in proportion to their population. Each "region" of Kenya was entitled to send a roughly equal number of MPs to Parliament, including the "White Highlands." In addition, legislation on several topics often required super-majorities, which gave the white settlers a de facto veto on anything threatening their economic power. Although the Prime Minister was guaranteed to be some sort of native African, central governments were weak and power became increasingly concentrated in the hands of the former King's African Rifles, especially one of their most senior non-British officers, Idi Amin.
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[1] OTL, Tunisian and Morocco independence were sped up by Algeria. ITL, they take place before.
[2] OTL, the FLN rebelled in late 1954 emboldened by Dien Ben Phu, but ITL, with no DBP, they delayed their plans by a year.
[3] As OTL.
[4] Jomo Kenyatta is still in jail.