US military troops come in active-duty, Guard, and reserve forces. Here's what each one does.
US military forces do a lot at home and abroad, but the different types of troops and the rules for each can be confusing.
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National Guard Birthday
With that order, what we now know as America's National Guard was born. The idea was simple: Establish an Army of citizen-soldiers who could be called upon to fight when needed. In 1636 ...