Ho Chi Minh
The Vietnamese revolutionary who spent fifty years pursuing independence, quoted Jefferson to declare it, and was read by Washington as a communist domino instead.

Ho Chi Minh used something like fifty aliases in his life, and the name he is remembered by, meaning roughly "he who enlightens," he did not adopt until he was past fifty. He was born Nguyen Sinh Cung in French Indochina, worked as a ship's hand and a kitchen laborer in London and Paris, and died in Hanoi in 1969 with the war he had started still six years from its end. His career is the clearest case study of a question that runs through the whole Cold War: whether an anticolonial nationalist who becomes a communist should be treated as the first thing or the second.
The petition nobody read
In 1919, with the victors of the First World War assembled at Versailles and Woodrow Wilson talking about self-determination, a young Vietnamese in a rented suit submitted a petition on behalf of his people. It asked not for independence but for modest civil rights within the French empire: equal legal treatment, freedom of press and association, an end to rule by decree. He signed it Nguyen Ai Quoc, Nguyen the Patriot. Nobody at the conference responded.
The lesson he drew was that liberal empires do not extend their principles to their colonies unless forced. The following year he became a founding member of the French Communist Party, on the straightforward grounds that the communists were the only Europeans proposing to end colonialism. He spent the interwar decades as a Comintern operative in Moscow, Canton, Hong Kong, and Siam, founding the Indochinese Communist Party in 1930 and the Viet Minh independence front in 1941.
Independence declared twice
In September 1945, with Japan defeated and the French not yet back, he stood in Hanoi and declared Vietnamese independence with a text that opens by quoting the American Declaration of Independence. American OSS officers stood near the platform; his Viet Minh had cooperated with them against the Japanese. He wrote repeatedly to Harry Truman asking for support, or at least recognition. He received no reply. Washington was deciding it needed France in Europe more than it needed goodwill in Asia, and it paid for France's war to return.
That war ran from 1946 to 1954 and ended at Dien Bien Phu, where the Viet Minh dragged artillery through mountains the French believed impassable and destroyed a garrison. The Geneva settlement divided Vietnam at the 17th parallel with national elections promised for 1956. The elections were never held, in large part because Washington and Saigon expected Ho to win them.
The figurehead years
By the time American combat troops arrived, Ho was ageing and increasingly ceremonial. Le Duan and the party apparatus ran the war in the south. Ho remained the symbol: the frugal, childless "Uncle Ho" in sandals, a cultivated image that concealed a professional revolutionary who had also presided over a land reform campaign in the mid-1950s that killed tens of thousands of Vietnamese and which the Party later admitted was a disaster.
He died in September 1969, on the anniversary of the independence he had declared. Against his written wishes for cremation, his body was embalmed and put in a mausoleum. Saigon was renamed for him in 1976.
His durable significance is not military doctrine or ideology; it is the misreading. American planners saw a link in a chain running from Moscow and Beijing, and built a war on that premise. Ho's own record, from the 1919 petition to the 1945 quotation of Jefferson to Vietnam's war against China in 1979, points to a nationalist who took allies where he could find them. Vietnam today is a one-party state that hosts American aircraft carriers and hedges against Beijing, which is roughly what a clear-eyed reading in 1945 would have predicted.