The core of this book is what appears to be very detailed notes of official Soviet correspondence related to the wars in Afghanistan (1979-1989), Angola (1975-1976), and Somalia-Ethiopia (1974-1978). It is padded with much less-detailed, less recondite information about Cold War operations in Latin America, Indonesia, and the Arab World (mostly the former South Yemen). That, in turn, is further padded with some "analysis" that highly damaging to the book's value as history.
The first layer of "padding" includes most of chapter 3 ("Creating the Third World"), in which Westad races through an unmanageably long itinerary of newly liberated colonies of Western Europe, or else Latin America. This is actually valuable at times, especially if one follows the endnotes: Westad focuses on the destructive aspect of the US in the 3rd World to 1960, and documents it with many non-radical sources. However, Westad is apparently convinced that the former colonial powers or Latin states were entirely without agency of any kind; so the result is that he can simply treat the US as a malevolent black box.
Westad is clearly far more sympathetic to the Soviets, probably because his research tends to pursue Soviet motives through (a) official memoranda to (b) a series of compelling motivations. In contrast, the motives of US figures are documented through informal tapes, and not pursued. The Soviets are therefore portrayed as cautiously evading conflict, and responding only to multiple US provocations; the Usonians are portrayed as omnipotent louts whose behavior requires no explanation.*
The most damaging aspect of the book lies in what I called the "outer" layer of padding. It's padding because it purports to be "analysis" of the overall sweep of events, but it shows clear signs of having been included as boilerplate. First, Westad entirely ignores the role of Europeans. Oddly, the East Germans are represented frequently as having independent influence; the French, almost never. Westad claimed this was because he believed the 3rd World, not Europe, was the "real" theater of the Cold War. This is silly, because Europe was still a participant in the 3rd world. I think there are two other reasons he didn't mention.
1. First, acknowledging the colonial powers as as having agency would have made everything more complicated. Instead of being 4/5ths padding, the book would have been highly distilled and required enormous effort to write.
2.Second, Westad has no desire to indict capitalism, just the US. This book has a remarkably crude, even Manichaean, view of historical causality. There is no inner division within the USA, and no sharing of agency among Western elites. Westad allows for deep turmoil and complexity in the Soviet leadership, but not in the "Western camp."
This becomes spectacular in his attempts to blame the entire poverty of the 3rd world on the USA, rather than acknowledging Europe's share of responsibility. His economic narratives presuppose, for example, omnipotence by the US government, complete ability to anticipate consequences, and complete discretion.** Likewise, he "blames" the US for creating the IMF in order to "Americanize" developing nations; the real reason was that the IMF was vital to the new recovery scheme, in which growth rates were delinked from gold. Again, the Western European contributions to both demands for and approval of US policies are ignored, for clearly invidious reasons.
Those interested in finding a better thought-out and more accurate indictment of US economic/security policies should consider Galeano's Open Veins of Latin America, which is infinitely superior.
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*It's understandable that Westad might simply be kinder to the USSR because it lost, and the USA survived. No doubt he regards the USSR as the natural defender of native rebellions against oppressive neocolonial polities. But rather than really make his case, he uses very manipulative language, such as endlessly following the death toll from each US intervention with a figure representing the same percentage of Americans; for example, 30K Nicaraguans killed in the civil war there, followed by 1.2 million (the same percentage of Americans as 30K is of Nicaraguans). He does nothing like this for the Soviets.
** For example, he claims the US caused the debt crisis by "deliberately" driving its currency up (1980's); in fact, the US government was trying to stop galloping inflation at considerable expense to its own economy. He mixes up real and nominal interest rates, and blames US deficits for a global credit crisis (the US public deficit in the early 80's was not unusually large as a share of GDP for OECD countries in that time period).
Fiscal and monetary policies of large countries accommodate interests inside and outside that country. In a crisis like the period 1971-1984, no policy option could avoid causing widespread unhappiness. In any parallel universe, any alternative course of action could have been deemed "selfish." And so on.