How many people are Marines trained to fight?
The marines are trained to fight about four people at a go. They are also taught hand-to-hand combat training and fighting techniques. This is said to master their physical discipline and appearance.
As many as necessary
They are not trained for a certain amount of people but jobs each marine has a job. My husband is in the infantry and is with mortars. Not just one person is with 1 mortar but a number of people and each one has a job.