Mao & Stalin, Osama & Saddam; Bush is starting to repeat one of the central errors of the cold war: treating our enemies as one entity.

Byline: Fareed Zakaria

I'm glad George W. Bush is using the bully pulpit to clarify the war on terror. Many of Bush's basic ideas--such as the need for reform in the Arab world--are sensible; it's their simplistic and botched execution, coupled with a mindless unilateralism, that have derailed his foreign policy. But in the past week the president, seeking to shore up domestic support for his policies, has been redefining the nature of the enemy. In doing so he is making a huge conceptual mistake, one that could haunt American foreign policy for decades.

Bush and Secretary of State Condoleezza Rice have compared the current conflict to the cold war, a decades-long struggle that was ideological and political in nature, though always with a military aspect. But if we're going to use history and learn from it, it is worrying that America is beginning to repeat one of the central strategic errors of the cold war: treating a fractious group of adversaries as a unified monolith.

At the outset of the cold war in 1949, a senior State Department official, Ware Adams, prepared a critique of America's evolving policy of containment. While accepting that international communism was a monolith and that diverse communist parties around the world shared aims and goals, Adams argued that Washington was playing into the Kremlin's hands by speaking of communism as a unified entity: "[Our policy] has endorsed Stalin's own thesis that all communists everywhere should be part of his monolith. By placing the United States against all communists everywhere it has tended to force them to become or remain part of the monolith." For example, the memo explained, "in China, the communists are somewhat pressed toward being friends of the Kremlin by the fact that they can never be friends of ours." (The memo, previously unpublished, will appear in a forthcoming book by Marc Selverstone of the University of Virginia.)

Four decades later, the Soviet Union collapsed, undermined in good measure by the diversity within the communist world--a diversity that the United States should have done more to encourage. Had Washington been more attentive to the differences within international communism, the Sino-Soviet split might have taken place earlier, Egypt might have defected from the Soviet camp earlier and, perhaps most important, the rift between Beijing and Hanoi might have developed earlier, changing completely the character of the Vietnam War.

In a careful recent essay, former U.S. intelligence official Harold P. Ford documents that by the mid- to late 1950s the CIA was arguing that such splits were developing and should be exploited. Nevertheless, Ford writes, the agency's arguments met stiff ...