The surge in commodity prices underpins the Canadian unit and has driven the unit to a four-year high against the greenback.

FORBES: Government Shutdown Aversion Boosts The Buck

In fact, later this month, the Marine Expeditionary Unit deployed as part of the surge, will depart Iraq.

NPR: Petraeus, Crocker Brief Congress on 'Surge'

The unit didn't begin to feel the effects of the surge until mid- May, after it was given an additional battalion from another division, he recalled.

NPR: 'Gamble' Author: Iraq War Only Halfway Over