Difference between structs and classes. The only difference between structs and classes in C++ is that the members of a struct have public visibility by default, and the members of a class have private visibility by default.he only difference between structs and classes in C++ is that the members of a struct have public visibility by default, and the members of a class have private visibility by default.
MILITARY INTELLIGENCE (MI) One of the largest branches with specialties in tactical intelligence, counter-intelligence, signals and electronic intelligence security, surveillance, and aerial reconnaissance. Click here to visit Fort Huachuca- The Home of the Military Intelligence.
1 Army â As the oldest branch of the Military, the Army protects the security of the United States and its resources. 2  Marine Corps â Working closely with the Navy, the Marine Corps is often first on the ground in combat situations.