Realistically, what would be likely to happen, in terms of how long the war could last, which cities are likely to be bombed, would ground invasions be possible, populations needing to relocate, people being drafted into the armed services, cooperation of government with industry, changes in the economy, changes in energy use (especially fossil fuels), questions of food distribution and/or rationing, increase or decrease in things like divorce, suicide, substance abuse, crime, incarceration and police brutality; moreover, what should be done to prepare for the possibility of a large scale war with another nation? And please just don't say "Get right with Jesus!" or start ranting about which politician is to blame.