▁school ▁within ▁Marine ▁Bar ra cks ▁Quant ico , ▁Virginia . ▁Walker ▁remained ▁in ▁this ▁capacity ▁until ▁October ▁ 1 9 2 0 , ▁when ▁has ▁been ▁transferred ▁to ▁the ▁ 2 nd ▁Marine ▁Brigade ▁under ▁Brig ad ier ▁General ▁Harry ▁Lee ▁and ▁sent ▁to ▁Domin ican ▁republic ▁to ▁fight ▁ins urg ents . ▁ ▁The ▁orders ▁for ▁return ▁to ▁the ▁United ▁States ▁came ▁in ▁August ▁ 1 9 2 2 ▁and ▁Walker ▁has ▁been ▁appointed ▁A ide - de - camp ▁to ▁the ▁Command ant ▁Nor folk ▁Navy ▁Y ard , ▁R ear ▁Admir al ▁Philip ▁Andrew s . ▁This ▁assignment ▁was ▁terminated ▁in ▁September ▁ 1 9 2 5 , ▁when ▁he ▁was ▁assigned ▁to ▁the ▁Company ▁Offic ers ▁Cour se ▁at ▁Marine ▁Corps ▁School ▁at ▁Quant ico . ▁Upon ▁the ▁gradu ation ▁in ▁June ▁ 1 9 2 6 , ▁now ▁in ▁the ▁rank ▁of ▁captain , ▁Walker ▁assumed ▁command ▁of ▁Marine ▁det achment ▁ab o ard ▁the ▁batt les hip ▁USS ▁West ▁Virginia ▁and ▁participated ▁in ▁the ▁ship ' s ▁voyage ▁to ▁Australia ▁and ▁New ▁Zealand . ▁ ▁Walker ▁left ▁sea ▁duties ▁in ▁July ▁ 1 9 2 8 , ▁when ▁he ▁was ▁appointed ▁an ▁instruct or ▁at ▁the ▁Offic ers ▁Basic ▁School ▁at ▁Philadelphia ▁Navy ▁Y ard . ▁He ▁left ▁for ▁over se as ▁duty ▁in ▁July ▁ 1 9 3 2 , ▁when ▁he ▁was ▁sent ▁to ▁H ait i ▁and ▁subsequently ▁commanded ▁const ab ul ary ▁det achment ▁within ▁Gar de ▁d ' Ha ï ti