dy ▁T idal ▁Power ▁Project , ▁a ▁New ▁De al ▁public ▁works ▁project . ▁He ▁went ▁to ▁the ▁Philippines ▁in ▁ 1 9 3 7 ▁to ▁advise ▁the ▁government ▁there ▁on ▁hyd rop ower ▁and ▁flo od ▁control . ▁In ▁the ▁early ▁part ▁of ▁World ▁War ▁II , ▁ ▁he ▁became ▁involved ▁with ▁the ▁enorm ous ▁w art ime ▁construction ▁program . ▁Perhaps ▁his ▁most ▁notable ▁and ▁last ing ▁achiev ement ▁was ▁his ▁invol vement ▁with ▁the ▁design ▁of ▁The ▁Pent agon , ▁the ▁largest ▁office ▁building ▁in ▁the ▁world . ▁ ▁Case y ▁served ▁as ▁General ▁of ▁the ▁Army ▁Douglas ▁Mac Ar thur ' s ▁chief ▁engineer ▁during ▁the ▁Battle ▁of ▁B ata an , ▁in ▁the ▁j ung les ▁and ▁mountains ▁of ▁New ▁Guinea ▁and ▁the ▁Philippines , ▁and ▁during ▁the ▁occupation ▁of ▁Japan . ▁In ▁the ▁Battle ▁of ▁Ley te , ▁he ▁commanded ▁the ▁Army ▁Support ▁Command ▁( AS COM ), ▁which ▁was ▁responsible ▁for ▁all ▁construction ▁and ▁log istics ▁activities ▁in ▁the ▁forward ▁area . ▁He ▁hoped ▁to ▁become ▁Chief ▁of ▁Engine ers , ▁but ▁President ▁Harry ▁S . ▁Tr uman ▁passed ▁him ▁over . ▁Later , ▁Case y ▁worked ▁for ▁Sch en ley ▁Indust ries ▁from ▁ 1 9 5 1 ▁until ▁his ▁ret irement ▁in ▁ 1 9 6 5 , ▁and ▁was ▁chairman ▁of ▁the ▁New ▁York ▁City ▁Trans it ▁Author ity ▁from ▁ 1 9 5 3 ▁to ▁ 1 9 5 5 . ▁ ▁Early ▁life ▁Hugh ▁John ▁Case y ▁was ▁born ▁in ▁Brook