Nairobi, June 18 -- Kenneth Kaunda, the former president of Zambia, who has died in hospital in the capital, Lusaka, at the age of 97, was the last of the giants of 20th century African nationalism. He was also one of the few to depart with his reputation still intact. But perhaps more than any of his contemporaries, the standing of the man who ruled over Zambia for 27 years is clouded with ambiguity.

The charismatic president who won accolades for bowing out peacefully after losing an election was also the authoritarian who introduced a one-party state. The pioneer of "African socialism" was the man who cut a supply-side deal with the International Monetary Fund (IMF). The nationalist leader known for personal probity planned to give huge...