Rookie Blue. The show takes place at an internationally staffed field hospital in Kandahar, so characters come from a variety of countries that make up the coalition fighting in Afghanistan, including the U.S., the U.K., Australia and, yes, Canada, where main character Dr. Rebecca Gordon (Michelle Borth) hails from.
The show is set in 2006 and doesn't seem to be angling for any political commentary; the wartime milieu is mainly just an excuse for heightened urgency in the medical emergencies, and in practice isn't much different from the approach used in the short-lived and little-loved Off the Map. Medical-drama junkies who are desperate for something new to watch will probably find this show tolerable, and performers like Koteas and Unger could bring some depth to it eventually, but for now Combat Hospital is just a generic medical drama with superficially distinctive trappings.
Premieres tonight at 10 p.m. on ABC.