Cape Citadel is a United States military base located in Florida. It was the site of the X-Men's first battle against Magneto where they were publicly revealed to the world. The base General described the X-Men as "uncanny" and promied that the name X-Men would be the most honored in his command.
Appearances[]
X-Men #1 (1963) - Magneto attacked the base but was defeated by the X-Men.