"Portland" ayaa markabkeedii ku biiray kooxda Admiral Frank J. Fletcher ee Task Force 17 si ay u qabsadaan ciidamada Japan meel u dhow Midway Atoll. Dagaalkii sokeeye ee halkaasi ka dhacay
4-tii ilaa 7-dii Juun, 1942, "Portland" waxay bixisay difaaca diyaaradaha ee diyaaradaha xambaara, kaas oo dhowr jeer lagu dhuftay tuugada Japan oo la qarxiyay. DuBose ayaa markaa amar ku bixiyay howlgalka badbaadinta ee xubnaha shaqaalaha ka badbaaday "Yorktown" waxayna ku qaadeen "Portland" ilaa Pearl Harbor laba maalmood ka dib.