Major John Wesley Powell makes the first recorded trip through the Grand Canyon and down the length of the Colorado River. The one-armed Civil War veteran followed this expedition with a second ...

President Donald Trump’s political and economic agenda dividing the nation is raising new concerns about a possible “civil war” among America’s “preppers” and has gun sellers readying for a summer ...

Peacekeeping in the Midst of War offers the most comprehensive analyses of peacekeeping on civil war violence to date. With unique data on different types of violence in civil wars around the world, ...

As politics increasingly divides America and the public, there appears to be a growing expectation that states will make moves to break away from the United States, the first step ...