If a second Civil War isn't popular, the terrain would also be good for Cold War Gone Hot scenarios:
- A Red Dawn-style Soviet invasion, with Cuban and other Central/South American support, pushing up from the south and east
- A Red Dawn remake with North Korean (!) or Chinese invasion forces pushing from the west
- A 'what-if' NATO splintered after the election of left wing governments in member countries, including Canada, and the Soviets are carrying out joint exercises in Canada and push south
- Intercept missions against Soviet nuclear-armed bombers flying from off-map bases in Russia and coming down through Canada to attack the US
Also, some anti-terrorist/drug runner/bootlegger missions along the border will be interesting to play on this map in various time periods