This answer indicates that West European countries tend to have
low military expenditure also because:
Not exact matches
Under his policy of «
low intensity conflict», designed to avoid another Vietnam-esque debacle, the US dramatically increased
military expenditures in order to fund anti-government rebels in Nicaragua, Angola, Ethiopia, Cambodia, and Afghanistan (including Bin Laden).
Countries in Europe, in contrast, which he leaned on U.S.
military protection via NATO in the early days after WWII, and which lacked the resources to participate more directly in the Cold War, normalized a
lower level of
military expenditure, and refrained from making nearly as great an economic commitment to fight wars in the Afghanistan and Iraq as the U.S. did as a leader of those coalitions.
Military expenditure percentages are currently
lower in the EU than in US.