▁ ▁With ▁the ▁last ▁troops ▁returning ▁from ▁Europe ▁during ▁the ▁summer ▁of ▁ 1 9 1 9 , ▁the ▁camp ▁was ▁ordered ▁to ▁be ▁abandoned ▁and ▁sold , ▁although ▁operations ▁continued ▁until ▁March ▁ 3 1 , ▁ 1 9 2 0 , ▁when ▁g arrison ▁troops ▁were ▁transferred ▁elsewhere . ▁In ▁ 1 9 3 8 ▁Camp ▁M ills ▁was ▁incorpor ated ▁into ▁Mitch el ▁Field ▁as ▁part ▁of ▁an ▁Air ▁Corps ▁expansion . ▁ ▁A viation ▁Con cent r ation ▁Center ▁The ▁A viation ▁General ▁Supp ly ▁Dep ot ▁and ▁Con cent r ation ▁Camp ▁( G arden ▁City ) ▁was ▁a ▁temporary ▁w art ime ▁establishment ▁located ▁adjacent ▁to ▁Camp ▁M ills , ▁and ▁shared ▁many ▁of ▁its ▁facilities . ▁It ▁was ▁used ▁for ▁organ izing , ▁training , ▁and ▁equ ipping ▁Air ▁Service ▁troops . ▁Also ▁originally ▁a ▁tent ▁camp , ▁it ▁was ▁established ▁on ▁ 1 7 ▁August ▁ 1 9 1 7 ▁to ▁facil itate ▁Air ▁Service ▁units ▁for ▁the ▁purposes ▁of ▁emb ark ation ▁to ▁Europe , ▁and ▁after ▁the ▁arm ist ice ▁in ▁November ▁ 1 9 1 8 , ▁for ▁the ▁purposes ▁of ▁deb ark ation . ▁The ▁facility ▁was ▁later ▁expanded ▁with ▁wooden ▁buildings ▁and ▁turned ▁into ▁a ▁contain ment . ▁ ▁The ▁Con cent r ation ▁Center ▁was ▁under ▁the ▁juris diction ▁of ▁the ▁Oper ations ▁Section , ▁Department ▁of ▁Military ▁Aer onaut ics . ▁▁ ▁It ▁was ▁later ▁re - design ated ▁as ▁the ▁Air ▁Service ▁Dep ot ▁from ▁October ▁