▁service ▁assignment ▁was ▁at ▁Marine ▁Corps ▁Base ▁San ▁Diego , ▁California , ▁where ▁he ▁was ▁posted ▁to ▁the ▁ 5 th ▁Marine ▁Brigade ▁under ▁Joseph ▁H . ▁P end leton . ▁During ▁this ▁assignment , ▁Wal lace ▁was ▁station ed ▁in ▁San ▁Diego ▁and ▁received ▁promotion ▁to ▁the ▁rank ▁of ▁first ▁lieutenant ▁in ▁April ▁ 1 9 2 5 . ▁He ▁was ▁subsequently ▁transferred ▁to ▁the ▁Marine ▁Bar ra cks ▁Quant ico , ▁Virginia , ▁in ▁May ▁ 1 9 2 6 ▁and ▁later ▁attended ▁the ▁Company ▁Offic ers ▁course ▁at ▁Marine ▁Corps ▁School ▁in ▁March ▁ 1 9 2 8 . ▁ ▁Following ▁the ▁gradu ation , ▁Wal lace ▁was ▁attached ▁to ▁the ▁ 4 th ▁Marine ▁Regiment ▁and ▁sa iled ▁for ▁China ▁in ▁October ▁ 1 9 2 8 . ▁He ▁was ▁station ed ▁in ▁T ient sin ▁and ▁later ▁performed ▁guard ▁duties ▁at ▁the ▁Shang hai ▁International ▁S ett lement . ▁He ▁was ▁ordered ▁back ▁to ▁the ▁United ▁States ▁during ▁January ▁ 1 9 2 9 ▁and ▁assigned ▁to ▁the ▁Marine ▁det achment ▁ab o ard ▁the ▁Rece iving ▁Sh ip ▁in ▁San ▁Francisco . ▁ ▁Wal lace ▁rejo ined ▁the ▁Marine ▁bar ra cks ▁at ▁Quant ico ▁in ▁August ▁ 1 9 2 9 ▁and ▁subsequently ▁was ▁sent ▁on ▁a ▁course ▁at ▁Army ▁Sign al ▁School ▁at ▁Fort ▁Mon mouth , ▁in ▁New ▁Jersey . ▁He ▁was ▁then ▁transferred ▁to ▁Washington , ▁D . C ., ▁where ▁he ▁served ▁at ▁Head quarters ▁Marine ▁Corps ▁until ▁April ▁ 1 9