▁time , ▁the ▁United ▁States ▁has ▁substantial ▁capabilities ▁in ▁both ▁defense ▁and ▁power ▁projection ▁thanks ▁to ▁compar atively ▁advanced ▁technology ▁and ▁a ▁large ▁military ▁budget . ▁Cy ber ▁war fare ▁presents ▁a ▁growing ▁threat ▁to ▁physical ▁systems ▁and ▁infrastr uct ures ▁that ▁are ▁linked ▁to ▁the ▁internet . ▁Mal icious ▁hack ing ▁from ▁domestic ▁or ▁foreign ▁enemies ▁remains ▁a ▁constant ▁threat ▁to ▁the ▁United ▁States . ▁In ▁response ▁to ▁these ▁growing ▁thre ats , ▁the ▁United ▁States ▁has ▁developed ▁significant ▁cy ber ▁capabilities . ▁ ▁The ▁United ▁States ▁Department ▁of ▁Def ense ▁recogn izes ▁the ▁use ▁of ▁computers ▁and ▁the ▁Internet ▁to ▁conduct ▁war fare ▁in ▁cy bers pace ▁as ▁a ▁threat ▁to ▁national ▁security , ▁but ▁also ▁as ▁a ▁platform ▁for ▁attack . ▁ ▁The ▁United ▁States ▁Cy ber ▁Command ▁central izes ▁command ▁of ▁cy bers pace ▁operations , ▁organ izes ▁existing ▁cy ber ▁resources ▁and ▁synchron izes ▁defense ▁of ▁U . S . ▁military ▁networks . ▁It ▁is ▁an ▁armed ▁forces ▁Un ified ▁Com bat ant ▁Command . ▁ ▁The ▁Department ▁of ▁Def ense ▁Cy ber ▁Str ategy ▁ ▁In ▁April ▁ 2 0 1 5 , ▁the ▁U . S . ▁Department ▁of ▁Def ense ▁( Do D ) ▁published ▁its ▁latest ▁Cy ber ▁Str ategy ▁building ▁upon ▁the ▁previous ▁Do D ▁Str ategy ▁for ▁Oper ating ▁in ▁Cy bers pace ▁published ▁in ▁July ▁ 2 0 1 1 . ▁The ▁Do D ▁Cy ber ▁strategy ▁focus es ▁on ▁building ▁capabilities ▁to ▁protect , ▁secure , ▁and ▁defend ▁its ▁own