Budget: $15.7 billion

Active frontline personnel: 92,000

Tanks: 181

Total aircraft: 420

Submarines: 4

Canada ended up at the bottom of the list because of the country's small number of active personnel, its lack of aircraft carriers and attack helicopters, and its small number of tanks and submarines. But Canada has still taken part in US operations in Afghanistan and Iraq, and it is a member of the NATO military alliance.

Canada is also a partner in the US F-35 program, although it may decline the purchase of F-35s depending on the outcome of elections in October.