Just glass cleaner, a lint-frre cloth (like micro-fiber) and most importantly a clean and smooth squeegee. Spray it on and scrub the window in small circular motion with the cloth. Squeegee it off in a slow and steady motion from top to bottom.
Might have to repeat it again if the windows were super dirty to begin with.
i think you forgot about this
https://en.wikipedia.org/wiki/Attack_on_Pearl_Harbor