This flow chart explains one requirement of American men. Flowchart explaining one requirement of American men. Register to War or national emergency to Mandatory military service.

What does the flow chart explain?

Select the correct answer from each drop-down menu. different sources are aimed at different audiences. sometimes a source can be directed at more than a single group of usually aimed at the general population across the globe. some sources may have a very specific audience. be specifically aimed at students or scholars with a background in literature.