Costliest: USA - Lots of rednecks and such that know how to blow stuff up and a wide array of environmental differences that would break certain equipment but not others, particularly when factoring in Hawaii and Alaska.
Bloodiest: Russia - If you don't believe me ask Hitler or Napoleon.
Longest: Russia - Too much territory and too much snow.
Hardest: USA - There would be a rifle behind every blade of grass.
Honorable mention to China for the vast population.
Bloodiest: Russia - If you don't believe me ask Hitler or Napoleon.
Longest: Russia - Too much territory and too much snow.
Hardest: USA - There would be a rifle behind every blade of grass.
Honorable mention to China for the vast population.