Both funds target developed markets outside the U.S., but they follow different index rulebooks. Those rules determine whether Canada and South Korea are included and can ultimately impact how an international portfolio is builtThe Vanguard FTSE Developed Markets ETF (VEA) charges a lower expense ratio and covers more countries, while the iShares Core MSCI EAFE ETF (IEFA) delivers a higher yield and excludes Canadian stocks.Both VEA and IEFA offer broad exposure to developed market equities outside the U.S. ...