United States Army cadets and United States Navy midshipmen march at their respective colleges in 1940s

The transcript discusses the intense rivalry between two prestigious military academies, West Point and Annapolis. This rivalry is most prominently displayed during the annual Army-Navy Game, a significant event in the world of military sports.

Describe the nature of the rivalry between the two institutions.

What are the two halls of higher military education mentioned in the text?

How does the competition between West Point and Annapolis manifest itself?

What does the phrase 'chalk line gridiron' refer to in the context of the text?

What is the annual classic event referred to in the text?