What type of operations may include missions that are classified?

Military aircraft operations may include missions that are classified due to the sensitive nature of their activities and the information they handle. These operations often involve strategic missions that may relate to national security, intelligence gathering, or defense tactics, which are subject to various levels of classification to protect operational details from potential adversaries.

In contrast, civilian operations, international cargo flights, and domestic passenger flights generally do not involve classified missions. Civilian operations tend to focus on public transportation and service delivery. International cargo flights, while they could occasionally transport sensitive goods, usually operate under transparency and do not typically engage in classified missions. Domestic passenger flights are regulated for safety and security but are not designed to conduct classified military operations. This distinction underscores the unique nature of military operations compared to other types of aviation activities.