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 Navy Seals are one of America's most elite forces in the world and America.  Navy Seals specialize in capturing or killing one or two people at a time. They are trained to do large operations but they specialize in something else. Navy SEALs have the hardest selection course in America for someone who's just normally enlisted.  First they go through normal navy boot camp if they pass the physical tests set before them and the instructors see something in you. You can do to indo or indoctrination this is where they teach the simple things like boats and how to do the obstacle course. After that you go into BUD/s which stand for basic underwater demolition.