How many subjects do you need to go into the army?

To join the army, the educational requirements can vary by country and specific role, but generally, a high school diploma or equivalent is necessary. In the U.S., for example, candidates typically need to have completed at least 15 units of high school coursework in subjects like English, math, and science. Some positions may require additional education or specialized training. It's best to check the specific requirements of the branch you are interested in.