Are merchant marines real marines?

The United States Merchant Marine is indeed a legitimate and vital component of the nation's maritime industry, but it is important to clarify that they are not 'marines' in the military sense. The Merchant Marine consists of civilian mariners who operate U.S. merchant vessels, which are primarily engaged in commercial shipping and transportation of goods. These mariners play a crucial role in supporting the economy and national security by ensuring the safe and efficient movement of cargo, including military supplies during times of conflict. While they do not serve in the military like the Marine Corps, they are often called upon to assist in military operations, and their contributions are essential for logistical support. Therefore, while they share the term 'marine,' their roles and responsibilities differ significantly from those of military marines.