Advice Regarding Paper on D-Day

[Cowhead418]

For my US History class (high school, Junior year), I've been assigned a twelve-page history paper due on the 20th. I've been developing my notes and research the past month and a half. I have completed well over one hundred notecards and am almost ready to start the actual writing of the paper. I wanted to ask for some final advice before I start the writing.

For my thesis, I am proving that there were other factors besides the troops assaulting the beaches at Normandy that won the day for the Allies. I'm thinking of concentrating on three main points - Allied technological superiority, Allied deception operations (Fortitude), and Allied airborne drops during the early hours of D-day - and a secondary point about German ineptness and judgmental error (especially Hitler's extreme stubbornness). I'll also fit in a few paragraphs about the Soviets and the French resistance.

Is there any major factor I'm missing that I should be focusing on or something that I should omit? I just wanted to discuss this with someone before diving into the final phase of the project, and I know there are some major history buffs on this board who can help.