ed ▁ranks ▁can ▁take ▁R anger ▁courses ▁with ▁their ▁divisions , ▁brig ades ▁and ▁reg iments . ▁These ▁courses ▁are ▁conducted ▁by ▁instruct ors ▁who ▁have ▁completed ▁the ▁Fu ji ▁School ▁course , ▁but ▁are ▁local ized ▁according ▁to ▁the ▁area ▁in ▁charge ▁of ▁each ▁unit . ▁For ▁example , ▁there ▁is ▁the ▁Japanese ▁Al ps ▁in ▁the ▁area ▁of ▁responsibility ▁for ▁the ▁ 1 3 th ▁Infantry ▁Regiment ▁( M ats um oto , ▁Nag ano ), ▁so ▁its ▁R anger ▁C ourses ▁focus ▁on ▁mountain ▁war fare ▁and ▁are ▁known ▁as ▁the ▁" Al pen ▁R anger ". ▁▁ ▁After ▁heavy ▁physical ▁training , ▁nine ▁exer cis es ▁are ▁held ▁in ▁the ▁ordinary ▁local ▁course ▁for ▁nine ▁weeks ▁while ▁end uring ▁great ▁mental ▁and ▁psych ological ▁str esses ▁and ▁physical ▁fat igue , ▁and ▁the ▁following ▁skills ▁are ▁acquired : ▁ ▁Navigation ▁ ▁Dem ol ition ▁ ▁Military ▁communic ations ▁ ▁Water bor ne ▁in fil tr ation ▁ ▁Air ▁assault ▁ ▁Sur v ival ▁skills ▁ ▁Mount aine ering ▁skills ▁ ▁Special ▁reconna issance ▁ ▁At ▁the ▁Fu ji ▁School ▁( at ▁the ▁base ▁of ▁Mount ▁Fu ji ) ▁ ▁Cour se ▁instruct or ▁candidates ▁and ▁officers ▁need ▁to ▁complete ▁the ▁ 1 3 - week ▁course ▁at ▁the ▁Fu ji ▁School . ▁ ▁At ▁Nar ash ino ▁( Ch iba ▁Pref ect ure ) ▁ ▁The ▁ 1 st ▁Air bor ne ▁Brigade ▁a ims ▁to ▁give ▁r anger ▁training ▁to ▁all ▁the ▁members ▁and ▁implements ▁its ▁own ▁Air