The Boston Globe will close its three remaining international bureaus in Jerusalem, Berlin and Bogota, Colombia, the newspaper announced Tuesday. The move, detailed in a memo to staff from the newspaper's editor, Martin Baron, comes after the Globe's parent company, The New York Times Co., announced earlier this month that it would eliminate about 125 positions through buyouts and other steps at the Globe and the Telegram & Gazette of Worcester, Massachusetts. Baron said the four people who work in the bureaus would be offered positions in Boston. "Continuing to bear the expense of our foreign bureaus would have required us to reduce staffing by a dozen or so positions beyond those already announced," Baron wrote. "We concluded that it would be unwise to meet the newsroom's financial targets by making additional staff reductions."