A navy is an effective mobile border when you don't have a Hawaii everywhere. It's easier to defend your castle when your first wall is 2000 miles from your nat

A navy is an effective mobile border when you don't have a Hawaii everywhere. It's easier to defend your castle when your first wall is 2000 miles from your natural border. Plus the best defense is a good offense. Nukes aren't a defensive weapon and yet they're an effective deterrent.