In 2003, Kagan's book "Of Paradise and Power: America and Europe in the New World Order", published on the eve of the US invasion of Iraq, created something of a sensation through its assertions that Europeans tended to favor peaceful resolutions of international disputes while the United States takes a more "Hobbesian" view in which some kinds of disagreement can only be settled by force, or, as he put it: "Americans are from Mars and Europe is from Venus." "New York Times" book reviewer, Ivo H. Daalder wrote: