This post first appeared on Today in Alternate History.
June 18, 1960 - Eisenhower lands in Peking
Upon his arrival in Peking, US President Eisenhower was 
warmly greeted as an old friend and WW2 war-time comrade by 
Generalissimo Chiang Kai-shek.
Fifteen years earlier, Chiang's 
Kuomintang Forces had liberated the city and won the Second 
Sino-Japanese War. The following November, he ordered the invasion of 
Communist-controlled Manchuria. This brief campaign resolving to the ongoing civil war ended the following
 March at the Soviet border with the capture of Enemy of the State, Mao 
Zedong.
Both men had worked together to defeat the Japanese, but,
although they toasted victory as unlikely allies, there could only 
be one ultimate winner. Mao was put on trial and 
executed by hanging. Despite Nazi war criminals undergoing the same 
brutal fate in Nuremberg, events in Peking shattered brittle US-Soviet 
relations. These were widely considered a causal factor in the escalation
 of the Cold War, and Chiang was to blame. His despicable 
reputation for peace-time ruthlessness and corruption only grew from 
this point forward. By 1960, he was a super-sized version of the 
warlords he had struggled with during the pre-WW2 years. An ageing 
dictator that discredited FDR's vision of the UN by occupying his seat 
on the Security Council, he clung to power as a US puppet. In some 
quarters, pictures of these two old WW2 relics only raised concerns 
about the vitality of the anti-Communist alliance.
The trouble 
was the tragic events in Manchuria had only foreshadowed insidious 
developments in Korea and Vietnam that had played out during 
Eisenhower's two-term presidency. Korea had been divided in 1945 to two occupation zones after substantial unrest under the United States Army Military Government in Korea. Elections brought the zones back together, and, after Soviet troops withdrew in 1948, communist leaders were chased out before the departure of American troops in 1949. Eisenhower's next stop was Saigon, a capital 
city in even greater disrepute and turmoil. There, too, the trial and 
execution of Communist Leader Ho Chi Minh was an aspiration of President
 Ngo Dinh Diem, mirroring the treatment of Mao.
Eisenhower landed in Saigon to find the newly 
formed Republic of Vietnam on the verge of a civil war that had been 
long in the making. Following Indochina's independence from France, 
President Ngo Dinh Diem ousted Emperor Bao-Dai and set up the Republic. 
But, he faced an altogether more determined opponent in the North, Ho Chi
 Minh, leader of the Viet Minh and refugee Chinese Communists. There was
 serious trouble brewing in other quarters, too. With corruption rife in 
Saigon, the country was threatening to break apart into factions. Much 
like China where Eisenhower had just left, the shattered post-war state 
of 1945 had yet to evolve as Diem and Chiang were heading for the 
bunker.
Diem desperately needed US support to deal with the 
insurgents and prevent the outbreak of a civil war. Having formed the 
Republic, he lacked the emperor's loyal military at this vital time. Eisenhower, however, was keen to avoid unpleasant surprises in his final 
year of office and wanted little more than an American ally against 
communism in Asia. To cynics, it appeared that America would have been 
better off supporting Emperor Bao-Dai with a loyal military, but, of 
course, that pro-monarchist strategy was politically unacceptable in 
Washington. The cause of liberty was difficult to defend when the local 
populace had no experience with or understanding of democratic 
representative government. Consequently, the Viet Minh looked like 
liberators, and Diem was in deep trouble.
With former British colonies such as Singapore and Malaya facing a bright future, American 
foreign policy seemed to be propping up dictatorships that were moving 
even further from democracy. For the imperialists with bitter memories 
of the Atlantic Charter such as Winston Churchill and Harold Macmillan, 
it was a cynical outcome that left a very nasty taste in their mouths. 
Given Eisenhower's obtuse position over the Suez Canal, America's role 
as a global policeman was becoming increasingly controversial and even 
divisive.
The real consequence of Chiang winning the Chinese 
Civil War was that the Soviets were looking beyond Asia to expand 
communism in Africa and the Americas. Closer to home, the Cuban 
Revolution had brought communist leadership to power less than ninety 
miles from the shores of Florida. The overthrow of an American puppet 
dictator did not bode well for Chiang or Diem, and this issue would raise
 its ugly head during an election year as America entered a new 
political cycle.
Despite (or perhaps, because of) the warm 
welcome he had received, Eisenhower was deeply troubled by his 
diplomatic tour of Asia. He returned to the United States with a desire 
to champion democracy and restore America's moral leadership. With the 
recent release of West Side Story, he was inspired to sponsor 
Puerto Rican representation in Washington. But due to the size of the 
population, he would need to look at constitutional alternatives to 
solutions such as Alaska, which had one-tenth of the people.
Ike also threw himself into Dick Nixon's presidential campaign. This change of heart was because he had determined that avoiding regime change in three capitals (Washington, Peking, and Saigon) was absolutely necessary to prevent his 'Domino Theory' from playing out in his successor's term of office. Ironically it was at this very moment that the CIA sought his clandestine approval for forcing regime change in Cuba. This secret ops mission began a series of events that would lead to the outbreak of World War Three with the Soviet Union.
