ers ▁in ▁the ▁United ▁States ▁Army ▁belong ▁to ▁the ▁United ▁States ▁Army ▁Corps ▁of ▁Engine ers . ▁ ▁The ▁mot to ▁of ▁the ▁US ▁Army ▁Corps ▁of ▁Engine ers ▁is ▁" E SS A Y ON S ", ▁from ▁French ▁" Let ▁us ▁try ". ▁ ▁Army ▁engine ers ▁include ▁both ▁combat ▁engine ers ▁and ▁support ▁engine ers ▁more ▁focused ▁on ▁construction ▁and ▁sust ain ment . ▁ ▁U . S . ▁Army ▁Engine er ▁units ▁outside ▁of ▁US ACE ▁District s ▁fall ▁under ▁the ▁Engine er ▁Regiment ▁of ▁the ▁U . S . ▁Army ▁Corps ▁of ▁Engine ers . ▁ ▁The ▁vast ▁majority ▁of ▁military ▁personnel ▁in ▁the ▁United ▁States ▁Army ▁Corps ▁of ▁Engine ers ▁serve ▁in ▁this ▁Engine er ▁Regiment . ▁ ▁The ▁Engine er ▁Regiment ▁is ▁head qu arter ed ▁at ▁Fort ▁Leonard ▁Wood , ▁Missouri ▁and ▁commanded ▁by ▁the ▁Engine er ▁Command ant , ▁currently ▁a ▁position ▁filled ▁by ▁an ▁Army ▁Brig ad ier ▁General ▁from ▁the ▁Engine er ▁Branch . ▁ ▁As ▁of ▁ 2 0 1 3 , ▁Army ▁Corps ▁of ▁Engine ers ▁Military ▁Occ up ation ▁Special ties ▁( M OS ) ▁were : ▁ ▁En list ed ▁ 1 2 B ▁Com bat ▁Engine er ▁ 1 2 C ▁Bridge ▁C rew member ▁ 1 2 D ▁D iver ▁ 1 2 G ▁Qu ar ry ing ▁Special ist ▁ 1 2 H ▁Const ruction ▁Engineering ▁Super visor ▁ 1 2 K ▁Pl umber ▁ 1 2 M ▁Fire fig h ter ▁ 1 2