▁on ▁ 1 8 ▁September ▁ 2 0 1 2 , ▁an ▁additional ▁ 2 0 0 0 ▁U g and an ▁troops ▁and ▁ 5 0 0 ▁South ▁Sud an ese ▁troops ▁were ▁' hand ed ▁over ' ▁at ▁Y amb io ▁in ▁South ▁Sud an . ▁On ▁ 1 3 ▁February ▁ 2 0 1 3 , ▁five ▁hundred ▁Cong ol ese ▁troops ▁of ▁a ▁light ▁inf antry ▁batt alion ▁at ▁D ung u ▁were ▁added ▁to ▁the ▁R TF . ▁ ▁This ▁raised ▁the ▁Force ▁to ▁ 3 , 3 5 0 ▁( of ▁a ▁total ▁author ised ▁strength ▁of ▁ 5 , 0 0 0 ) ▁and ▁completed ▁the ▁three ▁S ectors ▁en vision ed ▁with ▁bases ▁at ▁D ung u ▁( DR C ), ▁O bo ▁( C AR ) ▁and ▁N z ara ▁( S outh ▁Sud an ). ▁ ▁Force ▁headquarters ▁is ▁at ▁Y amb io ▁in ▁South ▁Sud an , ▁ ▁The ▁first ▁Force ▁Commander ▁was ▁U g and an ▁Colonel , ▁later ▁acting ▁Brig ad ier ▁Dick ▁Ol um ▁( UP DF ) ▁and ▁the ▁Deput y ▁Force ▁Commander ▁was ▁Colonel ▁Gabriel ▁Ay ok ▁A ku ok ▁( of ▁South ▁Sud an ’ s ▁Sud an ▁People ’ s ▁Liber ation ▁Army ). ▁ ▁United ▁States ▁invol vement ▁ ▁United ▁States ▁Special ▁Forces ▁had , ▁since ▁ 2 0 1 0 , ▁been ▁assist ing ▁U g and an ▁forces ▁in ▁their ▁operations ▁against ▁the ▁L RA ▁in ▁the ▁Democratic ▁Republic ▁of ▁the ▁Congo