▁Bul ac an ▁Guer illa ▁Unit ▁after ▁the ▁surrender ▁of ▁the ▁Philippines ▁to ▁the ▁Imperial ▁Japanese ▁Army . ▁ ▁After ▁World ▁War ▁II ▁he ▁went ▁on ▁to ▁take ▁ref res her ▁course ▁in ▁Good f ellow ▁Field ▁in ▁Texas , ▁United ▁States , ▁and ▁was ▁later ▁assigned ▁as ▁the ▁Executive ▁Officer ▁of ▁PA AC ▁from ▁March ▁to ▁May ▁ 1 9 4 6 . ▁He ▁became ▁the ▁Command ing ▁Officer ▁of ▁Lip a ▁Air ▁Base ▁from ▁August ▁ 1 9 4 6 ▁to ▁ 8 ▁June ▁ 1 9 4 7 , ▁and ▁further ▁the ▁Act ing ▁Chief ▁of ▁the ▁Philipp ine ▁Air ▁Force ▁from ▁ 9 ▁June ▁ 1 9 4 7 ▁to ▁ 2 7 ▁October ▁ 1 9 4 7 ▁at ▁the ▁temporary ▁rank ▁of ▁Colonel . ▁He ▁assumed ▁the ▁post ▁as ▁the ▁Command ing ▁Officer ▁of ▁the ▁P AF ▁from ▁ 2 8 ▁October ▁ 1 9 4 7 ▁to ▁ 1 6 ▁March ▁ 1 9 5 1 ▁and ▁was ▁promoted ▁with ▁a ▁temporary ▁rank ▁of ▁Brig ad ier ▁General ▁on ▁ 2 0 ▁May ▁ 1 9 4 9 . ▁ ▁Cruz ▁then ▁entered ▁the ▁Command ▁General ▁Staff ▁College ▁in ▁Fort ▁Le aven worth , ▁United ▁States ▁in ▁September ▁ 1 9 5 1 . ▁Upon ▁his ▁return ▁to ▁the ▁Philippines ▁he ▁was ▁assigned ▁as ▁Command ant ▁of ▁Command ▁and ▁General ▁Staff ▁School ▁at ▁Fort ▁McK in ley , ▁Tag u ig . ▁ ▁He ▁again ▁took ▁command ▁of ▁the ▁P AF ▁as ▁Command ing ▁General ,