What is the proper salutation for addressing a letter to a Marine Corps General?

The proper salutation for addressing a letter to a Marine Corps General is "Dear General [Last Name]." This form of address follows the established conventions for military correspondence, which emphasize respect and formality.

Using "Dear" along with the rank and last name of the individual ensures that the salutation is both personal and respectful, acknowledging the recipient's position within the military hierarchy. This approach aligns with the professional standards expected in formal communications, particularly within the military.

In contrast, "Dear Sir/Madam" is more generic and does not specifically acknowledge the rank of the General, which could come across as less respectful in military correspondence. "Greetings, General," lacks the traditional formality and structure expected in such communications. Lastly, "To General [Last Name]," while respectful, does not conform to the standard salutation format typically used in a letter. Thus, "Dear General [Last Name]" is the most appropriate choice.