Career and job required basic training in martial art and boxing. All military personnels from soldiers to generals required training in martial art. Admission requirment for military academy in every country is different. Quotation from wikipedia: http://en.wikipedia.org/wiki/United_States_Marine_Corps_rank_insignia http://zh.wikipedia.org/wiki/%%E7%%BE%%8E%%E5%%9B%%BD%%E6%%B5%%B7%%E5%%...