▁ ▁Intern ment ▁ ▁Leg al ▁basis ▁of ▁intern ment ▁▁ ▁Before ▁their ▁forced ▁arrival ▁to ▁the ▁United ▁States , ▁the ▁dep orte es ▁were ▁deliber ately ▁not ▁issued ▁any ▁vis as . ▁Once ▁they ▁arrived , ▁they ▁were ▁arrested ▁by ▁the ▁US ▁Im m igration ▁and ▁Natural ization ▁Service ▁( IN S ) ▁as ▁illegal ▁imm igr ants , ▁which ▁formed ▁the ▁legal ▁basis ▁for ▁the ▁US ▁government ▁to ▁intern ▁or ▁exp ell ▁them . ▁ ▁Cond itions ▁of ▁the ▁intern ment ▁cam ps ▁▁ ▁The ▁conditions ▁of ▁the ▁intern ment ▁in ▁the ▁beginning ▁were ▁quite ▁poor ▁as ▁it ▁was ▁believed ▁that ▁the ▁inter ne es ▁would ▁be ▁quickly ▁rep atri ated . ▁Once ▁it ▁was ▁clear ▁that ▁many ▁inter ne es ▁would ▁stay ▁in ▁the ▁cam ps ▁for ▁extended ▁period ▁of ▁time , ▁the ▁Justice ▁Department , ▁which ▁operated ▁the ▁cam ps , ▁began ▁impro ving ▁conditions . ▁Inter ne es ▁of ▁German , ▁Japanese , ▁and ▁Italian ▁descent ▁from ▁both ▁the ▁US ▁and ▁Latin ▁America ▁were ▁intern ed ▁together . ▁Cry stal ▁City , ▁a ▁purpose - built ▁intern ment ▁camp ▁for ▁large ▁families ▁had ▁not ably ▁well ▁conditions . ▁Japanese ▁inter ne es ▁beaut ified ▁the ▁camp ▁with ▁garden ing ▁and ▁land sc aping ; ▁education ▁was ▁provided ▁in ▁English , ▁German , ▁Japanese , ▁and ▁Spanish ; ▁a ▁sw imming ▁pool ▁was ▁built ▁for ▁the ▁children , ▁large ▁families ▁have ▁their ▁own ▁house ▁with ▁k itch ens , ▁bath rooms , ▁running ▁water , ▁and ▁ice ▁boxes .